Coreopsis 'Firefly'Coreopsis 'Firefly'

Coreopsis ‘Firefly’

Perfectly formed mounds of dense thread-like foliage are blanketed with startling, yellow and red bicolored flowers. Underneath the sheer beauty of this plant is the rock hardiness of C. verticillata breeding. Zone 5 hardy and super easy to grow with the added feature of powdery mildew resistance! This is definitely a plant for the front of the border or in a mixed container. Versatile, easy, and just fun!

USDA Hardiness Zone(s): 5-10
Size (HT/W/FL HT): 10″ / 15″ / 12″
Exposure: Full Sun
Bloom Time(s): June, July, August, September, October

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Common Name

Perennial Tickseed




Plant Type

US Patent #


EU Grant #


Hardiness Zone

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Growth Habit

Size (HT/W/FL HT)

10" / 15" / 12"

Finish Time

Bloom Time

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Growth Rate

Most Active Growing Season

Flowering Season

Flower Color


Leaf Color


Average, well-drained


Special Uses


Nutritional Needs

50 – 100 ppm


Dormant in Winter, Dormancy Over Winter

Water (Greenhouse)

Dry moderately between waterings

Water (Garden)

Average water needs in the garden

How Different?

Most compact of the "verticillata" hybrids. A lovely plant!

Landscape Value

A great plant for the sun garden; use in mixed beds, borders, or the cottage garden.

Finish Time to 4"

4 – 6 weeks


100% survival in the 2014-2015 winter at the University of Minnesota Perennial Flower Trial (with very little snow cover!). Given 4/5 points in trials at Disneyworld in Florida warm season 2016.

Grower Notes

Grow with 55 – 60° F nights and 60 – 70° F days. Pinch @ transplanting. Obligate Long Day plant. Provide night interruption or daylength extension to force flowering under natural short days. Supplemental lighting during cloudy days has proven beneficial for flower production. For highest quality, bring in liners in fall to bulk for early spring

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Coreopsis 'Firefly' - Product Profile
Coreopsis 'Firefly' - Growing Recipe
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