Coreopsis Jethro Tull
Jethro Tull Fluted Tickseed
Details15-18" tall x 18-24" wide (cutting propagated). An exciting new hybrid form of Coreopsis with unusually shaped golden-yellow fluted petals, 'Jethro Tull' is a perennial you'll want for its compact growing habit and long season of bloom. A cross between Coreopsis auriculata 'Zamphir' and Coreopsis grandiflora 'Early Sunrise', this plant needs a lean, well-drained soil in full sun for best garden performance. I plant it with Delosperma for a sensational, long blooming, low care pairing. Low fertility, well drained soil. PP#18,89
|Common Name||Jethro Tull Fluted Tickseed|
|Botanical Name||Coreopsis Jethro Tull|
|Zones||5, 6, 7, 8, 9|
|Light Requirements||Full Sun|
|Mature Height||15-18" tall|
|Mature Spread||18-24" wide|
|Bloom Time||Late spring to late summer|
|Ships As||Potted Plant|
|Planting Time||Spring / Summer, Fall|
|Soil Type||Low Fertility Soil, Well-Drained Soil|
|Soil Moisture||Drought Resistant / Waterwise|
|Amount of Rain||10 to 20", 20 to 30", 30 to 40" (with care)|
|Advantages||Deer Resistant, Attract Butterflies, Rabbit Resistant, Good for Cut Flowers, Good for Containers, Native, Extended Bloom Time (more than 4 weeks), Multiplies / Naturalizes|
|Ideal Region||Anywhere In The US|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||No|
Tips For Growing Coreopsis (Tickseed)
Coreopsis (Tickseed) are long-blooming native wildflowers that are easy-to-grow and provide ample nectar for butterflies. They're resistant to browsing rabbits and deer. Coreopsis can be divided into two groups that have different growing requirements: Coreopsis grandiflora and Coreopsis verticiliata (Threadleaf Tickseed) cultivars and hybrids.
1. Coreopsis grandiflora types (Tickseed) - these cultivars are generally grown from seed and are a short-lived perennial (3 to 4 years).
Preferred growing conditions:
- Needs sandy/gravely and sandy loam type soils. Avoid clay.
- Does best with gravel mulches.
- After their second growing season, only requires deep but infrequent watering. Too much water makes them floppy and shortens their lifespan.
- Plant in full hot sun.
- Adding just a few handfuls of compost and Yum Yum Mix in the planting hole is enough. Don't plant into a rich, highly-amended soil.
- Deadhead plants to prolong bloom. Leave a few seed pods on the plants to encourage re-seeding.
2. Coreopsis verticillata (Threadleaf tickseed) and hybrids - These are long-lived perennials that spread by rhizomes to form wide, dense growing clumps.
Preferred growing conditions:
- These species grow in a wide range of soil types including clay. Avoid very alkaline soils as they may get chlorotic (yellow foliage) due to unavailability of iron and other trace minerals.
- These plants don't need mulching except in hot climates.
- These are moisture-loving perennials and do best in moderately moist soil conditions.
- Plant in full sun areas.
- They like compost-enriched soils at planting time.
Threadleaf tickseed plants are often late to wake in spring from dormancy, so don't worry when other neighboring perennials wake up first.
Garden care for all types of Coreopsis:
- Fertilize Coreopsis just once in fall with Yum Yum Mix and Planters II. In addition, for C. verticillata types, green sand is recommended for alkaline soils to correct or prevent chlorosis.
- Plants can be divided in mid-spring when clumps die-out in the center or become too large for their place in the garden.
- Leave all Coreopsis varieties standing over the winter and cut back to 1-2" inches above the soil in mid-spring when the plants begin to wake up.
View more Planting Guides, or download our complete Planting Guide for tips on caring for your plants when you receive your order, as well as planting instructions for Perennials, Spring-Planted Bulbs, Fall-Planted Bulbs, Cacti & Succulents, Xeric Plants and more.
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Q & A
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USDA Hardiness Planting Zones
To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.
- If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
- If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).
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