Coreopsis Big Bang 'Star Cluster' is a prolific blooming perennial that produces creamy white daisy like flowers with purple centers that intensify in cool weather. Its tidy mounded habit and continuous flowering make it a standout for long season color in mixed borders or containers. Deadheading is not required, and it readily reblooms from early summer to frost, attracting attention from both pollinators and gardeners alike.
Height & Spread: 18 - 24 in x 18 - 24 in
Bloom Time: Early summer to frost
Light Requirements: Full sun
Soil Preference: Well drained soils, including sandy or rocky types
Watering Needs: Low to moderate; drought tolerant once established
Deer Resistance: Deer resistant
Native Status
This cultivar is derived from Coreopsis species native to North America. Though 'Star Cluster' itself is a hybrid, it retains many ecological benefits of its native parentage.
WILDLIFE & INSECTS
Butterflies
- Attracts butterflies such as Painted Lady, Pearl Crescent, and Monarch with its long blooming nectar rich flowers.
Bees
- Supports native bees including sweat bees, leafcutter bees, and bumblebees who forage steadily through the bloom season.
Moths
- Evening pollinators such as plume moths and owlet moths visit the open flowers at dusk for nectar.
Birds
- Seed heads attract goldfinches and other small songbirds in fall and winter if left uncut.
Spacing & Landscape Use
Spacing Recommendations
- Space 18 - 24 in apart to maintain airflow and accommodate the plant's full, rounded habit.
Landscape Placement
- Perfect for perennial beds, pollinator strips, and cottage gardens where continuous bloom and wildlife value are desired. Performs well in containers or massed for vibrant summer displays.
Companion Plants
- Salvia nemorosa 'Caradonna' (Wood Sage) - Deep purple flower spikes add vertical contrast and bloom alongside Coreopsis through summer.
- Rudbeckia fulgida 'Goldsturm' (Black Eyed Susan) - Offers overlapping bloom time and bold golden yellow daisies that harmonize with Star Cluster's bi color petals.
- Echinacea purpurea (Purple Coneflower) - Provides structure and complementary pollinator support with upright blooms and sturdy stems.
- Lavandula angustifolia (English Lavender) - Silvery foliage and fragrant spikes provide a soft contrast to Coreopsis’s vibrant daisies.
- Gaillardia x grandiflora 'Arizona Sun' (Blanket Flower) - Compact and heat tolerant with vivid red and gold blooms that mirror Coreopsis’s daisy form.