Cosmos Antiquity (Cosmos bipinnatus) Annuals Culture (revised 01/23/21) Plug crop time: 4 to 5 weeks Transplant to finish: 6 to 7 weeks • 2-in./5-cm flowers open rich burgundy and mature to antique bronze-salmon. • Very early and floriferous. • Well-suited to 3.5 to 4-in./9 to 10-cm pots.
