Coreopsis lanceolata Sterntaler
Details16" tall x 15" wide (seed propagated). 'Sterntaler' is a vigorous grower blooming from late spring through summer's end with very attractive, fringed yellow blossoms with a striking reddish brown eye. An easily grown, nicely compact selection, keep it deadheaded to extend the flowering season but leave a few seed heads at the end of the season to encourage it to re-seed itself.
|Common Name||Sterntaler Tickseed|
|Botanical Name||Coreopsis lanceolata Sterntaler|
|Zones||3, 4, 5, 6, 7, 8|
|Light Requirements||Full Sun|
|Mature Height||16" tall|
|Mature Spread||15" wide|
|Bloom Time||Late spring to 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, Native, Extended Bloom Time (more than 4 weeks)|
|Ideal Region||Anywhere In The US, Suitable Above 7000 ft, Northeast, Midwest, Southwest, West, Pacific Northwest|
|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.
Plant Shipping: Buy now and we will ship your order at the ideal planting time for your region. Fall shipping begins the week of September 5, zones 3-4 first. Most plant orders arrive within 3-5 days, or less, of leaving our greenhouses. This prompt delivery is provided without additional express charges.
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Comments about High Country Gardens Coreopsis lanceolata Sterntaler:
I love this coreopsis. It goes and goes and hasn't given me any problems. It got huge it's first year in the ground and was a cheerful presense all summer long.
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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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