Cosmos bipinnatus
2 ft. to 5 ft., varies with cultivar
Crimson, pink, white
Notes: Easy to grow from seed; self-sows.
Can't Tolerate: Rich soil (yields few flowers)
Cosmos sulphureus
1 ft. to 4 ft., varies with cultivar
Scarlet, orange, yellow
Notes: Easy to grow from seed; self-sows.
Can't Tolerate: Rich soil (yields few flowers)