Cosmos bipinnatus & C. sulfureus
Family: Asteraceae

Difficulty

Easy

Season & Zone

Exposure: Full sun
Zone: 2-10

Timing

Direct sow from early March right up until mid-June. Several sowings will result in a very long bloom period. You can also start Cosmos indoors in February to early March for transplanting late March to mid-April. Seeds will sprout in 3-10 days. Optimal temperature for germination: 21-25°C (70-75°F).

Starting

Sow seeds very shallowly only a few millimeters (1/8″) deep. Thin or transplant to 20-25cm (8-10″) apart.

300 seeds approx. per packet