|US Patent #||
|EU Grant #||
|Size (HT/W/FL HT)||
18" / 22" / 20"
|Most Active Growing Season|
5.8 – 6.8
50 – 100 ppm
Dormant in winter.
Dry moderately between waterings.
Average water needs in the garden.
Compared to Coreopsis verticillata 'Zagreb', 'Imperial Sun' has larger inflorescences and a shorter habit.
Use in mixed beds and borders, as a mass planting, an accent, or in a container.
|Finish Time to 4"||
4 – 6 weeks
Grow with 55 – 60° F nights and 60 – 70° F days. Pinch at transplanting. Obligate Long Day plant. Provide night interruption or day-length 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 sales.
Coreopsis ‘Imperial Sun’
Amazingly bright, sunny gold flowers cover this plant in masses and waves of continuous color. Clean, deep green foliage is the perfect foil for the flowers… when the foliage is visible. Blessed with a perfect habit, this extra hardy garden marvel is very much at home in a container or a long lived garden feature. Coreopsis verticillata breeding makes this mildew resistant selection ultra-hardy.
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Photo(s) courtesy of TERRA NOVA® Nurseries, Inc.