Coreopsis tripteris Gold Standard

Gold Standard Tall Tickseed

'Gold Standard' Tall Tickseed (Coreopsis tripteris 'Gold Standard') is a tall-growing, long-blooming perennial, that is very cold hardy and easy-to-grow. Its numerous, large, bright-yellow flowers appear in late summer and attract lots of butterflies.
Zones3 - 8
Advantages
Easy To Grow
Attract Butterflies
Deer Resistant
Good For Cut Flowers
Multiplies / Naturalizes
Light Requirements
Full Sun
Annual Rainfall
10 to 20"
20 to 30"
30 to 40" (with care)
Mature Height48-72" tall
Mature Spread48-72" wide
Bloom TimeLate summer to early fall
ShippingNo longer available this season. Learn More…
SizePlant - 5" Pot
SKUHC015196

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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SKU
HC015196

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Details

The late summer/fall garden is all about big and tall, and 'Gold Standard' Tickseed (Coreopsis tripteris ‘Gold Standard’) fits right in with towering stems covered with large bright yellow daisies for several months beginning in late summer. This cultivar was selected by the prestigious Mt. Cuba Center botanic garden of Delaware for its outstanding, strongly upright growth habit and extended bloom time. Vigorous and easy-to-grow Coreopsis 'Gold Standard' loves the sun and grows readily in a wide range of soils including clay. The plant attracts butterflies when blooming and seed-eating songbirds in the fall when the seed ripens. Planted with other tall, late-season blooming perennials such as Joe Pye Weed (Eupatorium), Maximilian's Sunflower (Helianthus), Prairie Switchgrass (Panicum) and Big Blue Stem Grass (Andropogon). These natives provide a stunning conclusion to the growing season and much needed nectar to many different pollinators.

More Information
SKUHC015196
Item Package Size
Plant - 5" Pot
Common Name
Gold Standard Tall Tickseed
Botanical Name
Coreopsis tripteris 'Gold Standard'
Zones
3, 4, 5, 6, 7, 8
Light Requirements
Full Sun
Flower Color
Yellow
Mature Height
48-72" tall
Mature Spread
48-72" wide
Bloom Time
Late summer to early fall
Ships As
Potted Plant
Soil Type
Clay Soil, Average Soil, Well-Drained Soil
Soil Moisture
Drought Resistant / Waterwise, Average, Well Draining
Amount Of Rain
10 to 20", 20 to 30", 30 to 40" (with care)
Advantages
Easy To Grow, Attract Butterflies, Deer Resistant, Good For Cut Flowers, Multiplies / Naturalizes
Ideal Region
Northeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer, Fall
Item Unit Of Measure
Plant
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.
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