Coreopsis grandiflora Sunray

Sunray Tickseed

Sunray is a compact, long blooming selection of the native tickseed. The showy double golden-yellow flowers are continuous over the summer when deadheaded. It thrives with heat and , sun and requires a well drained soil. Drought resistant/drought tolerant plant (xeric).
Zones3 - 9
Advantages
Deer Resistant
Attract Butterflies
Rabbit Resistant
Easy to Grow
Containers
Native
Cut Flowers
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40" (with care)
Mature Plant Size24" tall 18" wide
Bloom TimeSummer
ShippingNow shipping to zones 8-10.
Other zones shipping soon.
Learn More…
SizePlant - 5" Pot
SKUHC014007

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).

Find Your Planting Zone:

You have entered an invalid zip code, please check your zip code and try again.

Regular Price $9.99 Sale $8.49
Per Plant - 5" Pot
You save: 16%
In stock
SKU
HC014007

Video

 
Details
24" tall x 18" wide (seed propagated). An outstanding variety that blooms continuously all summer with large double golden-yellow flowers. Not picky about its soil, as long as it's well-drained. Keep deadheaded for best flowering.
More Information
SKU
HC014007
Item Package Size
Plant - 5" Pot
Common Name
Sunray Tickseed
Botanical Name
Coreopsis grandiflora Sunray
Zones
3, 4, 5, 6, 7, 8, 9
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
24" tall
Mature Spread
18" wide
Bloom Time
Summer
Ships As
Potted Plant
Soil Type
Average Soil, Drought / Dry 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, Easy to Grow, Containers, Native, Cut Flowers
Ideal Region
Anywhere In The US, Northeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer, Fall
Neonicotinoid Free
Native To
North America
Ships To Canada
No
Planting Guides

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.

Special comments

  • 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.

Special comments

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.
Shipping
ZoneShipping Status
Zone 2Shipping begins the week of May 20th, 2019
Zone 3Shipping begins the week of May 20th, 2019
Zone 4Shipping begins the week of May 20th, 2019
Zone 5Shipping begins the week of April 29th, 2019
Zone 6Shipping begins the week of April 22nd, 2019
Zone 7Shipping begins the week of April 1st, 2019
Zone 8Now Shipping
Zone 9Now Shipping
Zone 10Now Shipping
Reviews
Q & A

Suggested Companion Plants: