Species

Coreopsis grandifloraLarge-flowered Tickseed

19 other cultivars

perennialN. America Native

Jethro Tull Tickseed

Q: What zones can Jethro Tull Tickseed grow in?

Jethro Tull 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.

Q: Is Jethro Tull Tickseed deer resistant?

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

Q: When does Jethro Tull Tickseed bloom?

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

Q: Does Jethro Tull Tickseed need full sun?

Jethro Tull Tickseed does best in full sun (6+ hours).

Q: Is Jethro Tull Tickseed drought tolerant?

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

Coreopsis grandiflora 'Jethro Tull'

$9.05

The Story

Plant Bio

Coreopsis grandiflora 'Jethro Tull' is a perennial plant prized for its abundant, large, yellow flowers that bloom in early summer. It has a bushy growth habit and long-lasting blooms.

This cultivar is distinguished by its unique golden-yellow flowers, which have fluted, tubular petals surrounding a darker yellow center. It is a compact and long-blooming variety.

Uses & Benefits:

Coreopsis grandiflora Jethro Tull provides vibrant yellow blooms that brighten garden borders and attract pollinators, adding lively color and ecological value.

Its drought tolerance makes it suitable for low-maintenance xeriscapes and water-wise gardening.

Supports bees, butterflies, and hummingbirds, enhancing local biodiversity.

SpeciesCoreopsis grandifloraLarge-flowered Tickseed

Essentials

At a Glance

Plant Type

Perennial

Height

18 inches

Width

18 inches

Light

Full 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

Early summer – Late summer

In flower about 3 months of the year

Marketplace

Where to Buy

American Meadows

<1 Gal PotBarerootTrays

In Stock$9.05

New Garden Plants

<1 Gal Pot

In Stock$12.95

Garden Goods Direct

In Stock$32.95

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Water regularly to keep soil moist but not soggy during establishment.
Mist cuttings or divide mature plants in spring or fall for propagation.
Fertilize lightly in spring with a balanced fertilizer for vigorous growth.
Prune dead or damaged stems mid-season to encourage bushier growth.
Mulch around plants to retain moisture and suppress weeds during summer.

Pro Tip

Use organic compost to improve soil fertility and promote healthy blooms.

Keep It Thriving

Care Guide

Do

Water deeply once a week during dry spells 🌱
Deadhead spent flowers to encourage more blooms
Apply a balanced fertilizer in early spring

Don't

Avoid overwatering to prevent root rot ❌
Don't forget to remove weeds around the base
Refrain from heavy pruning in late fall

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vivid perennial border with bright yellow flowersSunny rock garden accentWildflower meadow edge

Companion Plants

Black-eyed Susan Lavender Coreopsis tinctoria Echinacea Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions