They are perennials so come up year after year. They are deciduous, loosing all their leaves and stems in winter.
China Aster, Callistephus chinensis, is a member of the Asteraceae family that includes the chrysanthemum and daisy. Unlike other aster varieties, this particular species is not a perennial, but an annual.
Do not exclude light at any stage, as this helps germination. Transplant seedlings when large enough to handle into trays or 7.5cm (3in) pots. Grow on in cooler, well lit conditions for 10-15 days before planting out after all risk of frost, 30cm(12in) apart.
Asters are classic flowers that typically bloom in late summer and fall. You can find potted aster plants at many garden stores, but growing asters from seed is easy and less expensive. Plus, if you grow from seed, you can choose from endless varieties instead of just whatever is available at the garden center.. . . . .364011233902!]0000000000000009783314146626!]
