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Hollinshead Water-wise Garden Plants

Photo:

Taxon ID#

21

A prolific bloomer with bright, golden flowers on small rounded plant.

Scientific  Name:

Coreopsis verticillata 'Zagreb'

Common Name 1

› Threadleaf Coreopsis

Family:

Asteraceae

Origins:

Eastern North America

Plant Type:

Herbaceous Plant, Perennial
Common Name 2

› Threadleaf Tickseed

Common Name 3

› Tickseed

Oregon native:

no

Western state native:

no

Scroll down for more information on each topic

Landscape Application Information

Seasonal Care

Resource Links

MAINTENANCE

Maintenance Level:

Low

Min. USDA Hardiness Zone:

3

Sun Preference:

Full Sun

Water Preference:

M

Soil Preference:

Well-drained soil, thrives in poor, sandy or rocky soils with good drainage

Fertilizer Needs:

Low

Recommended Mulch:

Organic

PLANT DESCRIPTION

Foliage Color:

Green

Foliage Description:

Palmately 3-parted leaves with threadlike segments lend a fine textured and airy appearance to the plant

Fragrant:

no

Predominant flower color:

Yellow

Flower Description:

Yellow, daisy like flowers 1-2" in diameter with yellow untoothed rays and yellow center discs

Fall color:

no

Fall Color Description:

Winter Foliage:

Deciduous

Winter Interest:

no

Winter Interest Description:

Mature height:

12-18"

Mature spread:

18"

Growth rate:

LANDSCAPE APPLICATION

Deer Resistant:

yes

Fire Resistant:

yes

Attracts Pollinators:

yes

Attracts Butterflies:

yes

Native Habitat:

Coreopsis is a genus of between 75-80 species from North America, Mexico, Central and South America in rocky and sandy soils

Attracts Birds:

no

Cut/Dried Flowers:

yes

Used by Wildlife:

no

Swales:

no

Wildlife Use:

Photo:

Hedge/Screen:

no

Border:

yes

Erosion Control:

no

Windbreak:

no

Ground Cover:

no

Provides Shade:

no

Rock Garden:

yes

Cover Structures:

no

First Bloom:

May

Last Bloom:

Adds Texture/Movement:

Jul

Ornamental Accent:

yes

yes

Garden Observations:

Seasonal Care
Maintenance

SEASONAL CARE

Spring Care:

May divide in spring every 2-3 years

Summer Care:

Deadhead flowers and stalk to the foliage, shear back 25-50% in late summer to encourage rebloom in fall.

Fall Care:

It's not necessary to cut back in fall - but leaving 6-8" of stem helps protect the plant in winter

Winter Care:

Clean debris away from the base of the plant and provide a layer of compost but not over the crown to protect over winter

Long Term Care:

Divide every 2-3 years to maintain vigor

Insect Pests:

Wildlife Pests:

Diseases:

Uncommon diseases - powdery mildew, botrytis, fungal spots

Environmental Problems:

Crown rot if not in well drained soil

Landscape Problems:

Tends to sprawl and can self-seed and spread by rhizomes in moist, fertile soil. Crown rot may occur if grown in moist poorly drained soils.

Care Comments:

RESOURCES

OSU Landscape Profile:

USDA Plants:

Calscape Database:

LBJ Native Plant Database:

Missouri Botanical Garden Database:

Monrovia Profile:

Alternate Source 1:

Alternate Source 2:

Source Comment:

Landscape Application
Resource Links

Plant Maintenance Information

Image by Mikaela Wiedenhoff

Sponsors
Desert Peaks Healthcare
George & Vickie Minor
Whistle Stop Farm & Flowers

McPheeter's Turf
High Desert Farms Nursery Sales, LLC
Schilling's Garden Market

Speakers
Karen McCarthy, Madras Garden Depot
Dan Denning, City of Bend
Nicole Bell, OSU Ecology Lab

Professor Amy Jo Detweiler
Craig LeHoullier
Amanda Egertson, Deschutes Land Trust
Dana Sanchez, OSU
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