Fall Planting Guide

Transcription

Fall Planting Guide

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C le ar an a le!
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See Pag
e s 28-31
Fall Planting Guide
T
hank you for choosing Dutch Gardens! Our perennials, bulbs, and
shrubs have been closely inspected and carefully handled to
ensure they arrive in top condition. These planting and care
instructions will help you get the most from your plants. If you have
any questions, please call us at 1-800-944-2250.
Dutch Gardens Guarantee: Your purchase price will be refunded on
orders returned within 14 days. If, for any reason, your merchandise
does not live, notify us within one (1) year of receipt and we will
replace the product free of charge.
Please note that Dutch Gardens’ plants and bulbs are not intended
for consumption, unless described otherwise. Some bulbs and plants
are toxic to humans or pets if eaten.
Contents
Care Upon Arrival. ............................................................. 2
About Our Plants................................................................ 2
Soil Preparation.................................................................. 2
Planting in the Garden......................................................... 3
Bulb Chart......................................................................... 4
Landscaping with Bulbs. ...................................................... 4
Hardiness Zones................................................................. 6
Tips for Warmer Climates. ................................................... 6
Bulb-Forcing Instructions..................................................... 7
Routine Care...................................................................... 8
Guide to Care Symbols. ..................................................... 10
Bulb Bed Planting Trays..................................................... 12
Plant-Specific Instructions.................................................. 12
Index of Plants. ................................................................ 27
Care Upon Arrival
For best results, plant within a few days of delivery. We plan shipments
so that your perennials, bulbs, and shrubs arrive during the appropriate
planting time for your area. The sooner you plant them, the sooner they
will begin to grow and establish themselves in your garden.
If you are experiencing unseasonably cold or hot weather and need to
delay planting for a few days, please open the shipping box to provide
adequate ventilation and store the box in a cool, shady place until
planting time. Keep from freezing. Maintain even soil moisture in the
potted plants. Leave bareroot plants and bulbs in the packaging. Mist or
sprinkle the bareroots to keep them moist.
Do not store bulbs near ripening fruit. They give off ethylene gas, which
can harm the embryonic flower inside your bulbs.
If you plan to force some of your bulbs for indoor bloom, please refer
to our Forcing Instructions on page 7. If you live in Zones 8, 9, or 10,
please read Tips for Warmer Climates on page 6. See our web site at
www.dutchgardens.com and click on How-To for more information.
About Our Plants
In the fall season, we offer bulbs, potted and bareroot perennials,
and shrubs. In this guide, we use the term bulb to refer to all bulblike
structures. Technically, we offer true bulbs, corms, rhizomes and
tubers.
We ship some of our perennials as semi-dormant or dormant bareroot
divisions. Upon arrival, bareroot plants may appear lifeless, but they
will begin growing soon after they are planted and watered.
Most of our perennials and shrubs are grown and shipped in 4-inch
pots. In the fall, many of these plants are preparing for winter
dormancy and the foliage may have already begun to die back. Be
assured that their strong root systems will produce healthy, vigorous
plants next spring.
After transplanting, bareroot and potted perennials typically take at
least three years to reach their mature size and flowering potential.
Soil Preparation
Perennials, roses, shrubs, and hardy bulbs are generally long-lived
and can remain in the same location for many years. We recommend
improving the soil in and around the planting area to ensure years of
beautiful, productive plants. Bulbs, in particular, require well-drained
soil. Plant them in a raised bed or mound if the site is soggy, especially
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in winter.
Before planting, spread 3–4" of compost over the planting area and mix it
thoroughly into the top 12" of soil. If desired, add a granular, slow-release
fertilizer to the soil, following package instructions. Adding organic
matter and natural fertilizer improves fertility, drainage and overall soil
health.
Planting in the Garden
Our perennials, bulbs, and shrubs are shipped as either potted or
bareroot plants. Each type is planted somewhat differently. Please use
this information as a guide and refer to the individual plant instructions
here and on the plant stake or label for the correct planting depth and
spacing.
• Bulbs are usually planted at a depth that’s about three times the
size of the bulb. For example, plant a 1"-high gladiolus bulb about 3"
deep. Most bulbs have a tapered end that should be planted pointing
up. Some have a flatter side that may show evidence of roots and
should face down. If you aren’t sure which end goes up, plant the bulb
Crown
Soil level
sideways. See the chart on page 4 for additional information.
• Bareroot perennials should be planted with their crowns—the place
where the roots and shoots meet—at the soil surface. To get them off
to the best start, soak the roots in cool to tepid water for 30 minutes
before planting. Spread the roots over a mound of soil in the hole as
shown below.
• Potted perennials and shrubs should be planted at the same depth
as they are growing in the pot, with the top of their rootballs at the
soil surface. Water thoroughly before planting. Loosen and spread the
roots gently.
Water all bulbs, perennials, and shrubs thoroughly after planting.
Follow up with weekly waterings throughout the plant’s first year if
rainfall is insufficient to maintain soil moisture.
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Please use the following chart to calculate how many bulbs to plant per
square foot. Refer to the instructions in this guide and on each plant
label for specific planting depth and spacing guidelines.
Type of Bulb
Bulbs/Sq. Ft.
Number of
Allium Globemaster/Gladiator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Allium Purple Sensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Alliums, small bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–15
Crocus and other small bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–15
Daffodils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Fritillaria imperialis (Crown Imperial). . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hyacinths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Tulips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–10
Landscaping with Bulbs
Spring-flowering bulbs are beautiful almost anywhere in your garden.
Use them to accent formal beds, borders, rock gardens, woodlands,
containers and lawns. By selecting varieties with different flowering
times, you can have flowers blooming throughout your landscape
beginning in very early spring and continuing into the early summer.
For the most dramatic color and impact, plant bulbs in groups or
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“drifts.” The more bulbs you plant in the
drift, the greater the impact.
Many of our bulbs are also good for
naturalizing, a planting technique that
results in a natural, informal appearance.
Bulbs that multiply readily—such as
daffodils and crocus—are especially good
for naturalizing. To achieve a natural effect,
scatter the bulbs gently over your site and
simply dig them in where they fall.
When selecting a site for naturalizing,
choose a spot that does not require mowing in the early spring. Once
flowers fade, it’s important to let the foliage continue growing. The
foliage feeds the bulb and then dies back naturally in approximately six
weeks. Removing the foliage prematurely may decrease the bulb size
and flowering in subsequent years. Here are some ways to use bulbs in
your landscape:
Naturalizing:
Crocus
Puschkinia (Early Stardrift)
Galanthus (Early Snowdrops)
Anemone blanda
Narcissus (Daffodils)
(Grecian Windflower)
Winter Aconite (Eranthis)
Woodland Gardens:
Muscari (Grape Hyacinth)
Anemone blanda
Star of Holland (Scilla siberica)
(Grecian Windflower)
Mixed Beds and Borders:
Arum italicum
Allium
Corydalis solida
Camassia
Crocus
Narcissus (Daffodil)
Cyclamen cilicium
Dutch Iris
(Hardy Cyclamen)
German Iris
Dracunculus vulgaris
Galanthus nivalis
Erythronium ‘Pagoda’
(Early Snowdrops)
(Dog Tooth Violet)
Gladiolus nanus (Hardy Gladiolus)
Rock Gardens:
Lilium (Lilies)
Galanthus (Early Snowdrops)
Scilla siberica (Star of Holland)
Dwarf Iris
Dramatic Drifts:
Dwarf Narcissus (Daffodils)
Narcissus (Daffodils)
Leucojum (Summer Snowflake)
Tulipa (Tulips)
Puschkinia (Early Stardrift)
Hyacinth
Tulipa (Tulips)
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Hardiness Zones and Microclimates
To help gardeners determine which plants can be grown successfully
in their climate, the United States Department of Agriculture (USDA)
and the National Weather Service (NWS) have identified eleven
North American hardiness zones based on average minimum winter
temperatures.
All trees, shrubs, vines, perennials and bulbs are given a hardiness
range. If a plant’s hardiness range is 6 to 9, it will survive average winter
temperatures in Zones 6, 7, 8 and 9.
Variations in soil, wind, altitude and snow cover can create warm
and cool pockets, called microclimates, within growing zones. For
this reason, use the hardiness range as a guideline to help you gauge
the potential for a plant’s success in your zone. Depending on the
microclimate, some plants will thrive and some will struggle outside of
their normal hardiness range.
The hardiness zones listed in this guide are for plants growing in the
ground. Plants growing in aboveground containers are more susceptible
to root damage from very cold temperatures and winter wind than
those growing in your garden. For this reason, plants that are normally
hardy in your zone may not survive the winter in a container. To protect
container-grown shrubs and perennials, place them in a sheltered area,
such as a heated garage, where temperatures do not dip below freezing.
Another alternative is to bury the crack-resistant container in the
garden and mulch with at least 6" of straw, leaves, or other material.
If you’re unsure of your hardiness zone, please go to our web site at
www.dutchgardens.com and use our Zone Finder or call us at 1-800-944-2250.
Tips for Warmer Climates
Dutch bulbs thrive in areas with cold winters, rainy springs and cool
summers. But with just a little attention, they will grow almost anywhere.
If you live in an area of the country where winters are mild and frosts
are rare (Zones 8-11), you must provide an artificial winter for many
spring-flowering bulbs prior to planting: specifically, most tulips,
daffodils, crocuses, hyacinths, alliums and muscari. To grow properly
and flower, these bulbs require a chilling period of at least eight
consecutive weeks of temperatures between 35° and 45°F. This takes a
little extra work and planning, but it is well worth the effort to enjoy a
beautiful spring display of flowering bulbs.
For best results, begin the chilling period (or artificial winter) as soon
as you receive your bulbs. Store the bulbs in the refrigerator in a vented
bag. To prevent damage to the developing flowers inside the bulbs, do
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not store any fruit in the refrigerator during this time—unless it’s in an
air-tight container.
After the eight-week cooling period, take the bulbs directly from the
refrigerator to your planting spot. An ideal site will have morning sun
and afternoon shade. Avoid hot, dry locations. After planting, apply
a 2-inch-thick layer of mulch to keep the bulbs cool and help retain
moisture. Please note that bulbs grown this way should be treated as
annuals; they cannot be saved easily for another year.
For more tips on growing bulbs in warm climates, please refer to the
articles about bulb growing at www.dutchgardens.com. Simply click
on How-To at the top of any page, then select the topic of your choice.
Bulb-Forcing Instructions
With proper care, most bulbs can be brought into bloom earlier
than their normal bloom time. The most common bulbs for indoor
forcing are Amaryllis and paperwhites. Please see the Plant-Specific
Instructions for information on forcing these bulbs.
Other spring-flowering bulbs, such as tulips, hyacinths, crocuses,
daffodils and muscari, can also be forced to bloom indoors, but they
must go through a chilling period. The process is simple and very
rewarding.
1.Choose a shallow planting container with a drainage hole. Terra
cotta and plastic pots work equally well.
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2.Select a growing medium with good drainage. It should contain
some peat, perlite and/or vermiculite. If the soil doesn’t drain well,
the bulbs may rot before they have a chance to bloom. Fill your
container two-thirds full with growing medium.
3.Plant the bulbs with the tip pointing up and level with the top of your
pot. Use as many bulbs as will fit in your container, placing them close
together, but without touching one another or the sides of the pot.
Add the soil around the bulbs, leaving the tip of the bulbs exposed.
Water the bulbs thoroughly and label each pot with the variety of the
bulb and the date planted. Cover the pots with a ventilated plastic bag
or a light cloth to retain moisture while in storage.
4.Store most potted bulbs for 12 to 15 weeks, and tulips for 14 to 16
weeks, at temperatures between 32° and 45°F. You can store your
pots in an unheated outbuilding or in a refrigerator, as long as
temperatures remain between 32° and 45°F and the bulbs are not
stored with fruit.
If you need more storage space and your outdoor temperatures will
fall below 45°F for at least three months, you can place the pots in
a 6–12" deep trench in your garden and cover the pots with straw,
followed by the removed garden soil. If necessary, protect your potted
bulbs from digging rodents by covering the pots with wire hardware
cloth before burying them in the ground or storing in the garage.
5.When the chilling period is complete, bring the pots into a cool
room (60° to 65°F) and place them in bright, indirect sunlight.
As shoots appear, place the pots in a warmer location with more
sunlight. You can expect blooms in 3 to 4 weeks. Maintain even soil
moisture while waiting for your bulbs to flower.
6.Once the bulbs are in full flower, enjoy! Expect the blossoms to last 7
to 10 days. To ensure the longest lasting blooms, keep the pot well
watered, out of direct sunlight and away from extreme heat (the
cooler the air temperature the better.) If the bulbs are hardy in your
zone, you may plant them in your garden once they have finished
blooming. It may be two years until they bloom again.
Routine Care
Taking good care of your plants will help them get established more quickly
and ensure they thrive for years to come.
Mulch. Apply a 2"-thick layer of mulch over your garden beds to help retain
moisture, maintain even soil temperatures, and suppress weeds. Keep
mulch 1–2" away from trunks and stems to prevent insect, rodent, and
disease injury.
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Water. Most plants need consistently moist soil during their first season in
your garden. Check the soil moisture at root depth and water as needed to
maintain even soil moisture.
Fertilize. To get your new plants and bulbs off to the best start, mix a
slow-release, plant fertilizer such as Dutch Gardens Performance Plus
or SeaGreen Natural Soil Booster into the planting hole. For vigorous
growth and flowering, apply an organic liquid fertilizer every 2–3 weeks
during the growing season. Stop fertilizing 6–8 weeks before the first
expected autumn frost date to allow plants to prepare for dormancy.
Care after Flowering. As your flowers fade, remove the spent blooms, but
allow the leaves to continue to grow. The foliage gathers energy from the
sun, which the plant will use to form next year’s flowers. Once the leaves
have turned yellow and dried, you may cut them back.
Rodent and Deer Control. The best defense is to choose bulbs that are not
particularly attractive to these critters. In general, daffodils, alliums, and
fritillaria are unappealing to rodents. Please see our catalog or use the Plant
Finder at www.dutchgardens.com for specific recommendations on deerresistant bulbs.
Crown Imperial (Fritillaria imperialis) bulbs emit an odor that deters
rodents. We recommend interplanting these bulbs in areas where you have
noticed rodent damage in the past. For further defense against deer and
rabbits, choose repellent products containing red pepper, garlic, putrefied
eggs and other strong scents. To deter digging pests, such as squirrels and
voles, use products containing crushed oyster shells or plant bulbs inside a
wire mesh bulb cage.
Divide Perennials. Vigorous perennials require division every 3–5 years.
It’s time to divide when your plants appear too crowded or flower
production or plant vigor decreases. Early spring and fall are best times. Dig
up the clump, retaining as many roots as possible, and divide the plant by
gently pulling or cutting clumps away from the main plant.
Fall Cleanup for Perennials. The stems of most herbaceous perennials die
back in autumn. You may cut the shoots down to the ground and remove or
let the stems remain throughout the winter to help catch snow—a natural
insulator. Remove the dead stems before new growth begins in the spring.
Pruning Shrubs and Trees. Newly planted shrubs and trees usually do
not need pruning in their first year. In subsequent years, prune off any
branches that rub against one another or grow toward the center of the
plant. Plants can also be pruned to maintain shape and avoid
overcrowding. Use sharp pruning shears and make the cut to an outward
pointing bud or to within 1⁄8" of the base of the twig. See specific plant
descriptions for more information.
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Guide to Care Symbols
Light Requirements
Full sun equals at least 6 hours per day of direct exposure.
Part sun /part shade equals 4–6 hours of morning sun or
dappled light. Plants need shelter from sun exposure at
midday and in the afternoon, especially in hot climates.
Shade means less than 4 hours of direct morning light or no
direct sun exposure.
Soil Moisture
Moist soil means that the plant prefers constantly moist soil
and may be suitable for planting near ponds or in seasonally
wet soil.
Regular or well-drained soil doesn’t remain soggy after
watering, but holds enough moisture to support healthy plant
growth. It contains organic matter and has a loose, crumbly
texture. Plants with this symbol require good drainage.
Droughty soil dries quickly after watering. It also occurs in
areas with infrequent rainfall. Plants with this symbol are
drought tolerant after their roots become well established.
Deer Resistance
Deer find some plants distasteful and are less likely to eat
them. Although hungry deer will eat almost any plant, the
ones with this symbol are more resistant to deer damage.
Cut Flowers
Plants with this symbol make good cut flowers for bouquets.
Butterfly-Attracting Plants
The flowers of these plants attract butterflies and other nectar
feeders.
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Bulb Bed Planting Trays
All of our Bulb Bed planting trays can be planted in containers or
directly in the ground. Whichever method you choose, plant the Bulb
Beds as soon as possible after you receive them. The bulbs need to
develop roots in the autumn in preparation for spring bloom.
Planting in a container:
1.Choose a container that is 1–2" wider than the Bulb Bed planting
tray. It should be at least 8" deep and have a drainage hole.
2.Use a high quality peat and perlite potting soil that will hold
moisture and drain well. If the bag of soil mix is dry, add water and
blend thoroughly before using. Do not use garden soil as it may not
drain properly.
3. Fill the pot with enough moistened potting soil so that the top of the
planting tray will be about 4" below the rim of the pot.
4.Set the planting tray into the pot and cover with about 2 to 3 inches
of potting soil. Water sparingly.
5.Store the container where temperatures will remain between 32° and
45°F for at least 12 to 15 weeks. Longer is better, especially for tulips.
Do not allow the container to freeze.
6.In the spring or when the chilling time is complete, place the
container in a cool, sunny place. Water as needed to keep the soil
moist but not saturated.
Planting in the ground:
1.Dig a hole in well-drained soil that is 1–2" wider than the Bulb Bed
planting tray and 4–5" deep.
2.Set the planting tray in the hole and cover with soil. Water sparingly
to settle the soil.
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Plant-Specific Instructions
Achillea, Yarrow
Spacing: 18″
Height: 15-18″
Planting depth: crown level with soil surface
Blooms: summer
Hardy: Zones 4-8
Yarrow grows best in soils with good drainage. Shear back plants in
mid-summer to remove spent blooms and promote more blooming.
Agastache
Spacing: 24″
Height: 24-36″
Blooms: mid-summer to early fall Hardy: Zones 6-10
Agastache is drought-tolerant after roots become well established. Plant
in well-drained soil.
Allium species
Spacing: 3-4″
Height: 20-24″
Planting depth: 3 times bulb diameter
Blooms: spring to early summer Hardy: Zones 3-8
Alliums have onion-scented bulbs and foliage that repel rodents
and deer. Some have foliage that dies back to the ground after the
plant blooms, making them good companions for ground-covering
perennials. Plant in well-drained soil. Please see catalog or website for
specific details.
Amaryllis
Spacing: 4-6″
Height: 15-30″
Planting depth: top 1/3 of bulb exposed
Hardy: Zones 9-10, Zone 8 with protection
Plant Amaryllis bulbs individually in heavy 6–8″ pots or group 4″ apart
in a larger pot. Avoid lightweight pots, which may tip over when the
plants bloom. Plant pointed end up, in loose, rich, potting soil with
approximately one-third of the bulb above the soil line.
Place the pot in a sunny location and water sparingly until you see
about 2" of new leaf or flower stalk growth. Either the foliage or flower
stalk may appear first—either is normal. After growth begins, water
regularly to keep the soil moist. As the plant grows, turn the pot
periodically to encourage the stalk to grow straight up. Within 3–10
weeks, depending on the bulb and variety, you’ll see 2 to 3 flower stems
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with 3 to 4 flowers per stem. To prolong the blooms, keep the pot out
of direct sunlight.
To encourage bulbs to blossom again the following year, cut off the
faded flowers, but leave the stalk until it withers. Continue to water and
feed regularly with a liquid houseplant fertilizer and allow the leaves to
grow. In mid-August, begin withholding water and let the foliage die
back naturally as the pot dries out completely. Leave the dormant bulb
in the pot and store in a dark and dry place at 45–60° for a minimum of
8 weeks. About 5 to 10 weeks before you want the Amaryllis to flower
again, resume watering. By following these basic care guidelines, your
Amaryllis may flower year after year. Repot only when they become
overcrowded.
Amaryllis can be grown as outdoor landscape plants in Zones 9, 10, and
protected parts of Zone 8 where freezing temperatures do not regularly
occur. Plant the bulbs in a sunny to partly shady, well-drained spot with
the top of the bulb 2–3" below the soil surface. Protect from freezing.
Amelanchier × grandiflora, Autumn Brilliance Juneberry
Spacing: 10-20′ Planting depth: top of root ball level with soil surface
Height: 15-25′ Blooms: early spring
Hardy: Zones 4-9
This native tree is attractive in all seasons: white flowers, dark berries,
crimson fall foliage, silvery bark, and graceful branching. Plant in any
well-drained soil. Prune in mid-summer, if needed.
Aquilegia, Columbine
Spacing: 12″
Height: 12-18″
Blooms: late spring to early summer
Hardy: Zones
3-9
Columbine is a native plant that prefers some shade and moist soil in
warm areas
Arum
Spacing: 5-6″
Height: 10-15″
Planting Depth: 2-3″
Blooms: early summer
Hardy: Zones 5-9
Grows very well in moist partially shaded areas where it will provide
interest spring through fall. In warmer areas, Arum appreciates more
shade.
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Aster Species
Spacing: 15-24″ Planting depth: crown level with soil surface
Height: 12-30″ Blooms: late summer to fall
Hardy: Zones 3-8
Plant Asters in well-drained soil. Divide every 3 to 4 years to maintain
vigor.
Astilbe Species
Height: 24-26″ Blooms: Early to late summer
Hardy: Zones 3–8
Astilbes grow best in moist, fertile soils. Cut flower spikes to the ground
after bloom or leave in the garden for fall and winter interest.
Athyrium niponicum Painted Fern
Spacing: 12″
Height: 12-16″
Hardy: Zones 3-8
Use as groundcover in shady, fertile, well-drained, evenly moist soil.
Baptisia, False Indigo
Spacing: 3′
Height: 3-6′
Planting Depth: crown level with soil surface
Hardy: Zones 5-8
Long lived early blooming perennial that has deep roots which make
drought resistant. Basically pest free.
Camassia leichtlinii
Spacing: 5″
Height: 30-36″
Planting depth: 6″
Hardy: Zones 3-9
Native to the Pacific Northwest, Camassia thrives in moist, rich soil. For
the best effect, plant in drifts of 10 bulbs or more. Foliage dies back and
goes dormant by mid-summer.
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Caryopteris
Spacing: 36″
Height: 36″
Blooms: late summer to early fall
Hardy: Zones 5-9
Prune stems back to new growth in the spring to promote a bushy
habit. Prefers well drained soils and a bit of protection in areas with
frigid winter temperatures.
Centaurea
Spacing: 20″
Height: 15-20″ Blooms: early summer
Hardy: Zones 3-9
Grows best in well drained soils. Shear off spent blooms to promote
more flowering.
Chionodoxa forbesii, Glory of the Snow
Spacing: 3-4″
Height: 4-8″
Blooms: very early spring
Hardy: Zones 3-8
The bulbs multiply rapidly to create a blanket of color along a pathway,
in your lawn or under trees. Plant in well-drained soil.
Coreopsis
Height: 15-36″ Blooms: mid-summer to fall
Hardy: Zones 5-9
Remove spent flowers regularly to encourage nonstop bloom. Plant
in well-drained soil. They can tolerate some drought after their roots
become well established.
Crocus
Spacing: 2-3″
Height: 3-4″
Blooms: early spring
Hardy: Zones 3-9
Naturalize the bulbs in mixed gardens, lawns, or wooded areas. Plant in
well-drained soil in groups of 20 or more for a big impact, or tuck a
handful of bulbs among other early bloomers.
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Cyclamen cilicium, Hardy Cyclamen
Spacing: 12″
Height: 4-6″
Planting depth: 1-2″
Blooms: late summer to fall
Hardy: Zones 5-9
Foliage goes dormant in the early summer, then emerges again in late
summer when the rosy pink flowers bloom. Plant the flatter, dimpled
side up and the smooth, rounded side down. They grow best in very
well-drained soil and can tolerate dry periods, but prefer moist soil.
Apply a 2″-thick layer of mulch to help retain soil moisture. Please note:
Cyclamen foliage may not appear until late summer or early fall. This is
normal.
Delphinium × belladonna
Height: 36-48″ Blooms: early summer
Hardy: Zones 3-7
Protect stems from strong wind or use supports. Cut spent flower
stalks down to the top of the foliage to encourage repeat flowering.
Delphiniums do not thrive in climates with very hot, humid summers.
Plant where they will receive morning sun and afternoon shade, in
fertile, well-drained soil.
Dicentra spectabilis, Old-Fashioned Bleeding Heart
Height: 24-36″ Blooms: late spring
Hardy: Zones 2-9
The foliage turns yellow and dies as plants go dormant by mid-summer.
Echinacea purpurea, Coneflower
Height: 12-36″ Blooms: mid to late summer
Hardy: Zones 4-9
Leave the dried seedheads on the plants to feed the birds and provide
interest in your winter garden. Plant in well-drained to dry soil.
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Eranthis cilicica, Winter Aconite
Spacing: 2″
Height: 2-4″
Hardy: Zones 4-7
Excellent companion for Early Snowdrops and Star of Holland. Before
planting, soak in lukewarm water overnight. Plant with the dimpled
side up and the smooth, rounded side down. If in doubt, plant the bulb
sideways.
Erythronium, Dogtooth Violet
Spacing: 3-4″
Height: 4-12″
Blooms: mid-spring
Hardy: Zones 4-8
Naturalize in a shady or wooded area. They prefer part shade
and evenly moist soil, but will perform equally well in full sun
when provided with enough moisture. Plant these toothlike bulbs
horizontally.
Eupatorium
Spacing: 30″
Height: 30″
Blooms: mid-summer to fall
Hardy: Zones 4-9
Adaptable to most soils including poorly drained ones. Remove spent
flowers to promote more blooming. North American native that is pest
free.
Euphorbia
Height: 12-36″ Blooms: late spring to summer
Hardy: Zones 4-9
Euphorbias prefer well drained soils. In southern areas, plants hold up
better when given partial shade in the afternoon. Compact varieties like
Bonfire are great in front of the garden. Taller varieties like Jessie are
better planted in the rear of the garden.
17
Fritillaria
Spacing: 2-12″
Height: 10-28″
Planting depth: 3 times bulb diameter
Blooms: mid to late spring
Hardy: Zones 4-9
The bulbs repel deer and rodents with their strong, musky scent and
can be planted in areas where rodents have disturbed other bulbs. Plant
in well-drained soil because they do not tolerate soggy conditions.
Some Fritillaria bulbs have a hole in the center. We recommend
planting these bulbs sideways to prevent water from collecting inside
the bulb, which can cause it to rot during the winter. See catalog or
website for individual variety information.
Galanthus nivalis, Snowdrops
Spacing: 2″
Height: 4-6″
Hardy: Zones 3-8
Snowdrops thrive in moist, partly shady spots. They make good
companions for miniature Dutch Iris (Iris reticulata). Foliage goes
dormant after bloom.
Gaultheria procumbens, Wintergreen
Height: 5-6″
Blooms: early summer (flowers): fall/winter (berries)
Hardy: Zones 3-8
Plant this native North American plant in moist, acidic, humus-rich soil
in woodland gardens and under tall shrubs.
Geranium, Hardy
Height: 15″
Hardy: Zones 4-9
Geraniums tolerate a wide range of growing conditions. Remove spent
flower stalks by cutting them to the base of the plant to encourage
repeat blooms and to keep plants tidy.
18
Gillenia
Spacing: 2-3′
Height: 2-3′
Hardy: 4-8
Very rewarding perennial for shady areas that may require a couple of
years to reach it’s full potential.
Gladiolus nanus, Hardy Gladiolus
Spacing: 4″
Height: 15-20″
Blooms: early to mid-summer
Hardy: Zones 5-10
These Gladioli are hardy enough to remain in the ground year round in
Zones 5 to 10. For best results in Zone 5, apply 2″ of loose mulch in late
fall.
Helenium
Spacing: 18–24″ Planting depth: crown level with soil surface
Height: 36-42″ Blooms: late summer to fall
Hardy: Zones 3-8
These drought-tolerant prairie plants thrive in any well-drained soil. In
Zones 7-9, prune floppy stems in mid-summer to encourage branching and
additional flowers.
Helianthus
Spacing: 2-3′
Height: 5-6′
Blooms: mid to late summer
Hardy: Zones 4-9
Due to the height and spread of Helianthus, it works well along fences,
walls, or in the middle of island beds where other plants can be planted in
front of it.
Helleborus
Spacing: 24″
Height: 18-22″
Blooms: early to late spring
Hardy: Zones 4-9
Keep soil moist, especially in warmer climates. Semi-evergreen leaves
may die back in areas with cold winters. Clip off dead foliage in early
spring to encourage new foliage and expose budding flowers.
19
Hemerocallis, Daylily
Height: 14-36″ Blooms: summer
Hardy: Zones 3-9
Plant in fertile, well-drained soil. Each flower opens for just one day, but each
flower stalk carries many buds that open continuously over a long period.
Hyacinth
Spacing: 4-6″
Height: 6-8″
Blooms: early to mid spring
Hardy: Zones 3-8
Plant in well-drained soil. Note that hyacinth bulbs may cause skin
irritation due to the naturally occurring dried crystals on the surface
of the bulbs. To minimize irritation, rinse bulbs with water prior to
planting, wear garden gloves when handling, and wash hands thoroughly.
Hyancinthoides hispanica, Spanish Bluebells
Spacing: 3″
Height: 10-12″
Hardy: Zones 3–9
Plant in moist, well-drained soil. Dainty, lightly scented flowers are
beautiful when allowed to naturalize. Not fussy about soil, they’ll
tolerate moisture as well as drought.
Ipheion, Starflower
Spacing: 3″
Height: 6-12″
Blooms: early to late spring
Hardy: Zones 5-9
These bulbs naturalize and form large colonies most readily in full sun,
but will also grow in shaded areas. In Zone 5, apply a 2" layer of mulch
to the planting area in late fall.
Iris germanica, Bearded Iris
Spacing: 12-14″ Planting depth: top of rhizome barely exposed
Height: 24-40″ Blooms: late spring to early summer Hardy: Zones 3-9
Plant in fertile, well-drained, moist soil. Set the fleshy rhizomes in
shallow trenches with the roots draped over a ridge of soil. The top
of the rhizome should be just above the soil surface after planting. If
20
planted too deeply or in poorly drained soil, the rhizomes may rot. For
best results, plant with the leafy end of the rhizomes all pointing in the
same direction. Reblooming Irises flower normally in early summer
and then send up additional flower stalks in late summer. Growing
conditions such as soil fertility, climate and weather, determine whether
or not they will bloom again.
Iris dardanus
Spacing: 6″
Height: 16-24″
Blooms: mid-spring
Hardy: Zones 5-9
This is a species of Iris that prefers to be planted in very well-drained
soil. Slopes and elevated areas where water runs off quickly are ideal.
Thrives in areas with sandy and gravelly soils.
Iris hollandica, Tall Dutch Iris varieties
Spacing: 3*4″
Height: 20-35″
Hardy: Zones 5-9
Plant in well-drained, moist garden soil. In Zone 5, apply a 2" layer of
mulch to the planting area in late fall for additional winter protection.
Iris reticulata, Snow Dwarf
Spacing: 2″
Height: 4-6″
Hardy: Zones: 4-9
Dwarf irises prefer well-drained, moist garden soil and full sun, but will
tolerate shade. They will not thrive in areas with hot, wet summers.
Grasslike foliage elongates after flowers fade, then dies back by early
summer.
Ixiolirion tartaricum, Lavender Mountain Lily
Spacing: 2-3″
Height: 15″
Hardy: Zones 5-9
Plant in well-drained soil. The bulbs do not tolerate waterlogged soil,
especially in winter.
21
Leucanthemum, Shasta Daisy
Spacing: 18″
Height: 28-30″
Blooms: early to late summer
Hardy: Zones 4-9
Remove spent flowers to promote more blooming.
Leucojum aestivum, Summer Snowflake
Spacing: 4-5″
Height: 9-12″
Blooms: late spring
Hardy: Zones 4-9
Summer Snowflake tolerates more moisture than most other bulbs, so
they naturalize easily even in damp soil and will thrive near ponds.
Lilium, Lily
Spacing: 8-12″ Planting depth: 6-8″ Height: 20-38″ Blooms: summer
Hardy: Asiatic: Zones 3-9; Oriental-Trumpet: 4-9; Oriental: 5-9
Plant lily bulbs as soon as they arrive to prevent them from drying out.
Asiatic lilies bloom in early summer. Fragrant Oriental and Trumpet
lilies follow in mid to late summer.
Plant smaller bulbs, such as Asiatic lilies, closer together and larger
bulbs, such as Orientals, farther apart. Use the 8" planting depth for
large bulbs and in hot-summer climates. In the spring, apply a 2" layer
of mulch over your lily plantings to keep their roots cool—they like
their “heads” in the sun and their “feet” in the shade. Please see catalog
or website for individual variety height and spacing information.
Lobelia cardinalis, Cardinal Flower
Spacing: 24″
Height: 24-36″
Blooms: mid to late summer
Hardy: Zones 3-8
Red, tubular flowers attract hummingbirds. This American native plant
thrives in moist soil.
Lonicera sempervirens, Honeysuckle
Spacing: 3′
Height: 3-6′
Blooms: summer Hardy: Zones 4-8
This native honeysuckle can easily be grown on a trellis, mailbox or a
22
fence. Blooms on previous years growth. Any pruning to train should
be done right after flowering in the summer.
Mertensia virginica, Virginia Bluebells
Height: 18-24″ Blooms: early to mid-spring
Hardy: Zones 3-8
Native wildflower makes a nice companion for bulbs and shade-loving
perennials. Plant goes dormant in mid-summer to reappear again in the
spring.
Monarda
Height: 12-30″ Blooms: early to late summer
Hardy: Zones 4-9
Monarda grows best in well-drained, evenly moist soil, but is relatively
drought-resistant once established. It spreads by underground stems to
form attractive colonies. To control spread, divide every 2 to 3 years.
Select an area with good air circulation to help prevent powdery mildew.
Muhlenbergia capillaris, Pink Muhly Grass
Spacing: 36″
Height: 24-36″
Blooms: late summer to mid-fall Hardy: Zones 6-10
Airy clouds of pink flowerheads of this native grass combine well with tallergrowing perennials, especially asters, Helenium, goldenrod, and Rudbeckia.
Muscari, Grape Hyacinth
Spacing: 2″
Height: 6-7″
Blooms: early to mid spring
Hardy: Zones 3-9
Plant them in groups of at least 25 bulbs for the most dramatic effect.
Narcissus, Daffodil
Spacing: 4-6″
Height: 6-18″
Planting depth: 4-6”, depending on the size of the bulb
Blooms: early to mid-spring
Hardy : Zones 3–8
Daffodils will form substantial clumps over the years. Divide the clumps in
mid-summer when flowering decreases. Replant bulbs immediately in fertile,
well-drained soil. For more details, please refer to the catalog or website.
23
Narcissus, Paperwhites
Height: 12-20″
Hardy: Zones 9-10
These bulbs are meant to be grown indoors for autumn and early winter
bloom. In a bowl without a drainage hole, place a 3–4" layer of gravel or
stones. Plant the bulbs with the bottom half of the bulb nestled in the stones
and the top (pointed) half of the bulb exposed. Add water and maintain its
level just below the bottom of the bulbs. Alternatively, plant the bulbs in a
container with drainage holes in regular potting soil. Place the pot in a cool,
sunny window and turn it regularly to keep the shoots growing straight.
Expect flowers in 4 to 6 weeks. Store any unused bulbs in a cool, dry and
dark place for up to 6 weeks until you’re ready to plant them. Discard after
flowering as they will not readily bloom
again.
Eye
Paeonia lactiflora, Peony
Crown
Spacing: 36-48″, depending on variety
Planting depth: eyes just below soil
surface
Height: 24-36″
Hardy: Zones 3-8
Bareroot Peony
Plant the roots so the “eyes” (nubs
where new growth emerges) are no
deeper than an inch below the soil surface. If planted too deeply, they
will not bloom. Peonies usually do not flower until their second or
third year after planting. In zones with hot summers it is important to
plant them where they will be shaded during the hottest part of the day.
Remove faded flowers to keep plants tidy. See catalog or website for
specific variety information.
Papaver orientale, Oriental Poppy
Height: 18-36″ Blooms: late spring to early summer Hardy: Zones 3-7
The foliage dies back and plants go dormant after flowering. They
sprout new foliage in late summer that remains evergreen through the
winter. Plant in well-drained soil. They tolerate drought after becoming
well established.
24
Perovskia, Russian Sage
Spacing: 36″
Height: 36-48″
Planting depth: top of root ball level with soil surface
Blooms: mid-summer to fall
Hardy: Zones 4-9
Plant in well-drained soil and avoid soggy sites. Plants can withstand
some drought after they become established.
Phlox divaricata ‘Manita’
Spacing: 12″
Height: 10-12″
Hardy: Zones 4-8
Early bloomer that will gradually spread and makes a nice companion
for daffodils.
Phlox paniculata, Tall Phlox
Height: 36-40″ Blooms: mid to late summer
Hardy: Zones 4-9
Deadhead to encourage more flowers. Plant in any well-drained garden
soil. Divide every few years or as needed to improve flowering.
Salvia nemorosa, Sage
Height: 12-24″ Blooms: early to late summer
Hardy: Zones 4-7
Easy to grow perennial that blooms over a long period starting in early
summer. Promote more flowering throughout the summer by shearing
back spent flower stalks.
Scilla siberica, Siberian Squill
Spacing: 2″
Height: 4-6″
Hardy: Zones 2-8
Bulbs multiply to form large, colorful colonies in any well-drained,
moist soil.
25
Syringa, Lilac
Spacing: 8-12′
Height: 10-12′
Hardy: Zones 3-8
Provide regular waterings during dry periods when the plant is getting
established. Established plants are drought tolerant. Prune out weak and
crowded branches in the middle of the shrub to promote better blooming.
Tiarella
Spacing: 12″
Height: 10-12″
Hardy: Zones 4-9
The plants grow naturally in wooded areas with humus-rich, moist soil,
but cannot tolerate constantly wet locations. Remove spent flower stalks.
Tulipa, Tulip hybrids
Spacing: 2-6″ Planting depth: 6″
Height: 6-30″ Blooms: early to late spring
Hardy: Zones 3–7, some to Zone 8
Tulips put on their best show in the first spring after planting. In
following years, most tulips produce smaller and fewer flowers and
their vigor will gradually decline. Some varieties, however, will perform
well for up to 6 years. See our catalog or www.dutchgardens.com for
more information about these perennial tulips.
If you live in an area that does not receive at least 8 weeks of tempera
tures below 45°F, please see Tips for Warmer Climates on page 6. See
catalog or website for specific height and spacing information.
Windflower, Grecian (Anemone blanda)
Spacing: 2″ or 9-12 bulbs per sq. ft.
Height: 3-4″
Blooms: early spring
Hardy: Zones 5-8
Excellent companion for spring-flowering bulbs. Before planting, soak the
bulbs in lukewarm water for about 6 hours—or overnight. It may be hard to
tell which end is up on this irregular, flattened bulb, so plant them sideways.
We wish you a successful gardening season!
26
Index of Plants
Achillea, Yarrow. . . . . . . . . . . . . . . . . . . 12
Agastache. . . . . . . . . . . . . . . . . . . . . . . . . 12
Allium species. . . . . . . . . . . . . . . . . . . . . 12
Amaryllis . . . . . . . . . . . . . . . . . . . . . . . . . 12
Amelanchier × grandiflora,
Autumn Brilliance Juneberry . . . . . 13
Aquilegia, Columbine. . . . . . . . . . . . . . 13
Arum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Aster Species. . . . . . . . . . . . . . . . . . . . . . 14
Astilbe Species. . . . . . . . . . . . . . . . . . . . 14
Athyrium niponicum Painted Fern. . 14
Baptisia, False Indigo. . . . . . . . . . . . . . 14
Camassia leichtlinii. . . . . . . . . . . . . . . . 14
Caryopteris. . . . . . . . . . . . . . . . . . . . . . . 15
Centaurea. . . . . . . . . . . . . . . . . . . . . . . . . 15
Chionodoxa forbesii,
Glory of the Snow. . . . . . . . . . . . . . . . 15
Coreopsis. . . . . . . . . . . . . . . . . . . . . . . . . 15
Crocus. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cyclamen cilicium, Hardy Cyclamen. 16
Delphinium × belladonna. . . . . . . . . . 16
Dicentra spectabilis,
Old-Fashioned Bleeding Heart. . . . 16
Echinacea purpurea, Coneflower . . . 16
Eranthis cilicica, Winter Aconite . . . 17
Erythronium, Dogtooth Violet. . . . . . 17
Eupatorium. . . . . . . . . . . . . . . . . . . . . . . 17
Euphorbia . . . . . . . . . . . . . . . . . . . . . . . . 17
Fritillaria . . . . . . . . . . . . . . . . . . . . . . . . . 18
Galanthus nivalis, Snowdrops. . . . . . 18
Gaultheria procumbens, Wintergreen.18
Geranium, Hardy. . . . . . . . . . . . . . . . . . 18
Gillenia. . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Gladiolus nanus, Hardy Gladiolus . . 19
Helenium. . . . . . . . . . . . . . . . . . . . . . . . . 19
Helianthus. . . . . . . . . . . . . . . . . . . . . . . . 19
Helleborus. . . . . . . . . . . . . . . . . . . . . . . . 19
Hemerocallis, Daylily. . . . . . . . . . . . . . 20
Hyacinth. . . . . . . . . . . . . . . . . . . . . . . . . . 20
Hyancinthoides hispanica,
Spanish Bluebells. . . . . . . . . . . . . . . . 20
Ipheion, Starflower. . . . . . . . . . . . . . . . 20
Iris germanica, Bearded Iris. . . . . . . . 20
Iris dardanus. . . . . . . . . . . . . . . . . . . . . . 21
Iris hollandica,
Tall Dutch Iris varieties. . . . . . . . . . . 21
Iris reticulata, Snow Dwarf. . . . . . . . . 21
Ixiolirion tartaricum,
Lavender Mountain Lily. . . . . . . . . . 21
Leucanthemum, Shasta Daisy . . . . . . 22
Leucojum aestivum,
Summer Snowflake. . . . . . . . . . . . . . . 22
Lilium, Lily . . . . . . . . . . . . . . . . . . . . . . . 22
Lobelia cardinalis,
Cardinal Flower. . . . . . . . . . . . . . . . . . 22
Lonicera sempervirens,
Honeysuckle. . . . . . . . . . . . . . . . . . . . . 22
Mertensia virginica,
Virginia Bluebells. . . . . . . . . . . . . . . . 22
Monarda. . . . . . . . . . . . . . . . . . . . . . . . . . 23
Muhlenbergia capillaris,
Pink Muhly Grass. . . . . . . . . . . . . . . . 23
Muscari, Grape Hyacinth . . . . . . . . . . 23
Narcissus, Daffodil . . . . . . . . . . . . . . . . 23
Narcissus, Paperwhites . . . . . . . . . . . . 24
Paeonia lactiflora, Peony. . . . . . . . . . . 24
Papaver orientale, Oriental Poppy. . . 24
Perovskia, Russian Sage. . . . . . . . . . . . 25
Phlox divaricata ‘Manita. . . . . . . . . . . 25
Phlox paniculata, Tall Phlox. . . . . . . . 25
Salvia nemorosa, Sage . . . . . . . . . . . . . 25
Scilla siberica, Siberian Squill. . . . . . 25
Syringa, Lilac . . . . . . . . . . . . . . . . . . . . . 26
Tiarella. . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Tulipa, Tulip hybrids. . . . . . . . . . . . . . . 26
Windflower,
Grecian (Anemone blanda). . . . . . . 26
27
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Fall Planting Guide

Transcription

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