perennialN. America Native

Large-flowered Tickseed

Coreopsis grandiflora

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Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Low to moderate

Humidity

Average

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Clump-forming, often short-lived perennial native to the central and southeastern U.S. Features solitary, yellow, daisy-like flowers and thrives in full sun, attracting bees and butterflies. Known for its large flowers and ability to flower profusely throughout the summer.

Uses & Benefits:

Coreopsis grandiflora provides vibrant yellow blooms that brighten sunny borders and attract pollinators, adding cheerful color to gardens.

It is drought-tolerant, requiring minimal watering once established, making it ideal for low-maintenance landscapes.

Supports bees and butterflies, enhancing local biodiversity and pollination.

Marketplace

Where to Buy

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Planting

How to Grow

Select a sunny location with well-draining soil to ensure healthy growth.
Tuck seeds or cuttings into soil, keeping them moist and in full sun for best germination.
Mist cuttings regularly to maintain humidity and encourage root development.
Transplant seedlings after they are strong enough, usually in early spring or fall.
Apply organic compost around plants every 6 weeks to promote blooming.
Deadhead spent flowers to encourage continuous flowering throughout the season.

Pro Tip

Ensure soil drainage is excellent to prevent root rot and promote vibrant blooms.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 🌱
Prune spent flowers to extend bloom period
Use organic compost for fertilizing

Don't

Avoid overwatering to prevent root rot ❌
Don’t neglect deadheading to sustain flowering
Avoid heavy shade, as it reduces blooming

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright yellow border for sunny gardensWildflower meadow accentVivid perennial bed filler

Companion Plants

Echinacea Lavender Coreopsis verticillata Gaillardia Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Large-flowered Tickseed questions

What zones can Large-flowered Tickseed grow in?

Large-flowered Tickseed is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Large-flowered Tickseed deer resistant?

Yes — Large-flowered Tickseed is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Large-flowered Tickseed bloom?

Large-flowered Tickseed typically blooms in late spring, summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Large-flowered Tickseed need full sun?

Large-flowered Tickseed does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Large-flowered Tickseed drought tolerant?

Yes — once established (usually after the first full season), Large-flowered Tickseed handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.