Hollinshead Water-wise Garden Plants

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Photo:

Threadleaf Coreopsis

Threadleaf Tickseed

Tickseed

Latin Name:

Coreopsis verticillata 'Zagreb'

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

Taxon ID#

21 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

Family:

Asteraceae

Origins:

Plant Type:

Herbaceous Plant, Perennial

Eastern North America

Oregon native:

no

Western state native:

no

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

Photo:

Used by Wildlife:

no

Hedge/Screen:

no

Swales:

no

Wildlife Use:

Border:

yes

Erosion Control:

no

Windbreak:

no

Cover Structures:

no

Ground Cover:

no

Provides Shade:

no

Rock Garden:

yes

Adds Texture/Movement:

yes

First Bloom:

May

Last Bloom:

Jul

Ornamental Accent:

yes

Garden Observations:

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:

https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c270

Hollinshead Water-wise Garden Plants

Photo:

​

Threadleaf Coreopsis

Threadleaf Tickseed

Tickseed

Latin Name:

Taxon ID#

21

MAINTENANCE

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

Family:

Origins:

Plant Type:

Herbaceous Plant, Perennial

Eastern North America

Oregon native:

no

Western state native:

no

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

Photo:

​

Used by Wildlife:

no

Hedge/Screen:

no