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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
Sponsors
Desert Peaks Healthcare
George & Vickie Minor
Whistle Stop Farm & Flowers
McPheeter's Turf
High Desert Farms Nursery Sales, LLC
Schilling's Garden Market
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