← Back to plants
Photos are representative and may not match your specific variety.
Tower Blue
Flower
FlowerCallistephus chinensis
- Partial sun
- Zones 2–11
- 110 days to maturity
- Flowers
- 18" spacing
- Moderate water
- Annual
Overview
All the elegance and beauty of peonies and garden mums in an easy-to-grow annual. Deep silvery violet-colored blooms avg. 2-3" with 13-20 stems per plant. Tower features uniform bloom time and plant height across the series and mix. Also known as summer aster.
Planting
Start indoors 6-8 weeks before last frost, or direct sow after last frost
Growing
Sun: partial. Water: moderate. Soil: Well-drained soil. Space plants 18" apart. Germination: 7-14 days.