How to Grow Plains Coreopsis Zagreb
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Plains Coreopsis Zagreb
Coreopsis tinctoria 'Zagreb'
flowerPlains Coreopsis Zagreb is a compact, semi-dwarf cultivar of the native wildflower tickseed, prized for its prolific deep red flowers with golden-yellow centers. This hardy annual to short-lived perennial blooms prolifically from early summer through fall frost with minimal maintenance. It's excellent for borders, containers, and pollinator gardens.
When should you plant Plains Coreopsis Zagreb in your zone?
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Example Plains Coreopsis Zagreb timeline · Pittsburgh, PA (Zone 6b)
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Plant Plains Coreopsis Zagreb
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Plains Coreopsis Zagreb blooms
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Plains Coreopsis Zagreb dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-9; performs best in zones 3-8
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Seedling
2-3 weeksThin, delicate cotyledons emerge within 7-10 days. True leaves are fine and feathery.
Keep soil consistently moist but not waterlogged. Thin seedlings to 12-18 inches apart. Provide bright light to prevent legginess.
Vegetative Growth
3-4 weeksCompact plant develops dense, finely-divided foliage. Height reaches 12-18 inches with bushy branching.
Water moderately; allow soil to dry between waterings. Pinch back growing tips at 4-6 inches tall to encourage branching. Fertilize lightly every 3-4 weeks.
Flowering
8-12 weeks (early summer to fall)Deep crimson-red flowers with golden-yellow centers (daisy-like) appear abundantly on stiff stems. Flowers measure 1-1.5 inches across.
Deadhead spent blooms every 2-3 days to promote continuous flowering. Reduce nitrogen fertilizer to avoid excess foliage at expense of flowers.
Mid-Season Rejuvenation
Ongoing managementIf plant becomes sparse or leggy, stems may thin. New growth initiates from base.
Cut back stems by one-third in mid-season to rejuvenate. Water and fertilize lightly. New flowers appear within 2-3 weeks.
Decline/Senescence
2-4 weeks before frostFlowering slows as temperatures cool in fall. Seeds mature in spent flower heads.
Allow some flowers to remain for self-seeding or seed collection. Remove plant after hard frost in cold climates, or cut back for perennial regrowth in warmer zones.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick in early morning; use pheromone traps nearby but away from plants; apply neem oil if severe
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Increase humidity by misting; spray with water forcefully; use miticide if infestations persist
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Spray with insecticidal soap or neem oil; encourage natural predators like ladybugs
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Improve air circulation; avoid overhead watering; apply sulfur or fungicide at first sign
Uses
Edible Garnish
CulinaryBright flowers are edible and add striking color and mild peppery flavor to salads and desserts. [source]
Cut Flowers & Arrangements
HouseholdExcellent as fresh or dried cut flowers for bouquets, arrangements, and long-lasting displays with minimal fussing. [source]
Pollinator Magnet
WildlifeAttracts butterflies, bees, and other beneficial insects, making it ideal for pollinator gardens and supporting local ecosystems. [source]
Dried Flowers
CraftFlowers dry beautifully and retain color well, perfect for dried arrangements, wreaths, and craft projects. [source]
Traditional Dye Plant
MedicinalCoreopsis tinctoria has a long history as a natural dye source for fabrics, producing warm red and yellow hues. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flowers for arrangements in early morning when stems are fully hydrated; they last 5-7 days in a vase. For seeds, allow flowers to dry on plant, then collect seed heads in late summer/fall when papery and brown. Seeds can be stored dry in cool conditions for next year.
Fun Facts
- 🌱 The species name 'tinctoria' means 'used for dyeing,' reflecting its historical use by Native Americans and early settlers to dye fabrics.
- 🌱 Coreopsis is native to the Great Plains and is often called 'tickseed' because the seeds resemble ticks and were thought to help remove them from animals.
- 🌱 'Zagreb' is a compact, improved cultivar selected for ornamental gardens, offering more controlled growth and profuse blooms compared to the wild species.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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