Return to Coreopsis List Return to Rhythmix Combos

Coreopsis Sunny Day

Scientific Name : Coreopsis grandiflora
Common Name : Tickseed
Hardiness Zone : 4a - 9b
Hardiness Degree : -30°F (-34°C)
Blooming Season : Autumn, Summer, Late Summer
Plant Habit : Upright
Characteristics : Attracts Bees, Attracts Butterflies, Deer Resistant, Drought Tolerant, Attracts Hummingbirds, Heat Tolerant
Water : Light
Fertilizer : Once a month
Spacing : 12 - 18" (30 - 46cm)
Height : 18 - 24" (46 - 61cm)
Width : 22 - 24" (56 - 61cm)
Exposure : Sun
General Information : Sunny day has lots of large, single yellow blooms on compact plants.
Idea & Tips : Plant in full sun in a well-drained location.
Grower Information
  • Excellent choice to brighten borders and containers.
  • Lots of big, bright, single yellow blooms on compact plants.
  • Remove spent flowers to encourage reblooming.
  • North American native species.
Daylength : Coreopsis Sunny Day will bloom naturally as days lengthen and temperatures begin to rise in late Spring.
Cool Treatment
Plant Maturity: Cold treatment beneficial, but not required for flowering. Plants should be bulked under natural short days for a 4-8 week period. Mature, bulked up plants will respond more favorably to cold treatment.
Temperature: 35-41°F
Duration: 6-15 weeks
Benefits: Increased number of flowers; earlier flowering.
Plant Growth Regulators : Generally not needed.
Protection InformationPP17,405
Breeder : Darwin Perennials
Marketing Information
Download a benchcard