Species

Coreopsis grandifloraLarge-flowered Tickseed

19 other cultivars

perennialN. America Native

Razzle Dazzle Tickseed

Coreopsis grandiflora 'Razzle Dazzle'

The Story

Plant Bio

A compact, bushy perennial with bright yellow flowers that bloom profusely in summer.

This species is known for its large, solitary, bright yellow, daisy-like flowers that bloom from late spring to late summer.

Uses & Benefits:

Coreopsis grandiflora Razzle Dazzle provides vibrant yellow blooms that brighten garden borders and attract pollinators.

Its drought tolerance reduces watering needs, making it suitable for water-wise gardens.

Supports bees, butterflies, and other beneficial insects, enhancing local biodiversity.

SpeciesCoreopsis grandifloraLarge-flowered Tickseed

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

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds into well-drained soil in early spring for best germination.
Water regularly to keep soil moist but not waterlogged during growing season.
Mist cuttings or divisions in early spring for propagation success.
Fertilize with a balanced, slow-release fertilizer in spring and mid-summer.
Pinch back young plants to promote bushier growth during early summer.
Mulch around plants to retain moisture and suppress weeds in spring.

Pro Tip

Ensure full sun exposure for vibrant blooms and healthy growth.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells to promote strong roots 🌱
Deadhead spent flowers to encourage more blooms
Apply mulch to conserve moisture and regulate soil temperature

Don't

Avoid overwatering which can lead to root rot ❌
Don’t fertilize late in the season to prevent weak, leggy growth
Refrain from disturbing roots during peak flowering

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Prune
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright yellow borderWildflower meadow accentDrought-tolerant garden bed

Companion Plants

EchinaceaLavender Coreopsis verticillata GaillardiaRussian Sage

Multiply

Propagation Methods

Good to Know

Common Questions

Razzle Dazzle Tickseed questions

What zones can Razzle Dazzle Tickseed grow in?

Razzle Dazzle Tickseed is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Razzle Dazzle Tickseed deer resistant?

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

When does Razzle Dazzle Tickseed bloom?

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

Does Razzle Dazzle Tickseed need full sun?

Razzle Dazzle Tickseed does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Razzle Dazzle Tickseed drought tolerant?

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