Coreopsis Sienna Sunset

Threadleaf Coreopsis, Tickseed

Note: This is an archive page preserved for informational use.
Cultural and Growing Info is provided below.

Flowers are a warm apricot overlaid with burnt sienna.
Flowers are a warm apricot overlaid with burnt sienna. Colors soften with age to a pleasing salmon. Coreopsis Sienna Sunset blends well with Coneflowers and are a perfect complement to the dark-leaved Heuchera. Same terrific performer as Creme Brulee in a very enticing new color. Road salt tolerant. Although this is a true C. verticillata, the leaves are wider than a classic Threadleaf Coreopsis.

Code COSI

Patent PP19,411

Plant Type Perennials

Species verticillata

Height Medium 16-20"

Spacing Plant 15-24" apart

Bloom Time Early Summer to Early Fall

Sun / Shade Full Sun to Mostly Sunny

Zones 5-9

Soil Type Normal, Sandy

Water Needs Low

Sold In Plantable Pots (3.5x3.5x4")

Special Features

  • Beneficial for Pollinators
  • Attracts Butterflies
  • Good for Cut Flowers
  • Deer Resistant
  • Long-Blooming

Planting Sites

  • Hot Dry Site Tolerant
  • Humidity Tolerant
  • Seaside/Salt Tolerant

Coreopsis General Information

Coreopsis verticillata are great cut flowers with its unusual narrow tapered foliage. Free flowering-continuously in bloom from early summer into fall. Spreads readily and can be used on a sunny bank, in a naturalized planting, or in a traditional border. Long blooming and easy to grow, they come in various heights and many shades of yellow, reds, pink, and white. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Coreopsis Plant Care

Prefers a nice sunny well drained spot. Very easy to grow. Remove top one-third of plant with hedge shears after flowering to freshen foliage, if needed. Spreads reliably, so division every 2-3 years may be needed to restrain girth, but only if desired.

Plantable Pots

Our plants are grown in 3.5x3.5x4” plantable pots. Made from 100% biodegradable coconut husk fibers (coir), these pots have tremendous advantages over plastic pots. With better air exchange, this "breathable" pot fosters robust root growth and reduces transplant shock since you can plant the pots directly in the ground. The pot naturally becomes part of the soil on its own over time—no composting required—and since they're made from a renewable resource that requires very little energy, they're earth-friendly too!

100% Guarantee

We offer a 100% unconditional guarantee for all our perennials to reach you in good condition and to grow. If you're not satisfied, we'll reship or refund immediately. Please don't hesitate to contact us if you have questions or concerns—we share your passion for gardening and want your new plants to thrive in your border!

Shipping Details

We use custom, earth-friendly packaging to make sure your order arrives in great condition, and we ship based on the best planting time for your growing zone (see the approximate dates below), unless otherwise indicated at checkout. If you wish, you can indicate a specific ship date during checkout.

Spring

  • Zone 3, 4: Early to Mid May
  • Zone 5: Late April to Early May
  • Zone 6: Mid to Late April
  • Zone 7: Early to Mid April
  • Zone 8: Late March to Early April
  • Zone 9, 10: Late March

Fall

  • Zone 2, 3, 4: Early September
  • Zone 5: Early to Mid September
  • Zone 6: Mid September
  • Zone 7: Mid to Late September
  • Zone 8, 9, 10: Late September to Early October

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