Our premium large multicolored mix of super fine cutting Asters with beautiful flowers for backgrounds and cutting! Annual. This dramatic aster has big, peony-like blossoms that open in full bloom. Fantastic cut flowers. Blooms mid to late summer. Days to Sprout: 10 – 20 Do not plant where asters grew the year before. Sow seeds, cover lightly with soil and keep moist until seedlings are established.