Callistephus (Aster)

Callistephus, or China asters, offer a wide range of colors and flower forms that can enhance any floral arrangement. They are perfect for mixed bouquets and as focal flowers due to their bright colors and sturdy stems.

Callistephus thrives best in spring or fall, particularly in regions with hot summers, as they prefer cooler temperatures.

Start seeds indoors 6-8 weeks before the last frost date or sow directly in the garden once the frost danger has passed. Keep the soil consistently moist, but not waterlogged, and apply a balanced fertilizer regularly.

Harvest the flowers when they are fully open but not overly mature to ensure the longest vase life in floral arrangements.

To prevent soil-borne diseases like fusarium wilt and aster yellows, rotate planting locations annually in your garden and ensure proper air circulation by spacing the plants well.