IA

Butterflyweed (Asclepias tuberosa)

Blooms: May-September

Plant Height: 1-2 ft

Needs sunlight and dry or moist soil. Drought tolerant.

Swamp Milkweed (Asclepias incarnata)

Blooms: June-October

Plant Height: 2-5 ft

Needs lots of water and moist/wet soil. Shade tolerant.

Purple Milkweed (Asclepias purpurascens)

Blooms: May-July

Plant Height: 2-4 ft

Needs dry soil and sunlight.

Showy Milkweed (Asclepias speciosa)

Blooms: May-September

Plant Height: Assume 1½-3 ft. Max. height 6 ft.

Needs sunlight and moist soil. Shade intolerant. Use medium water

Whorled Milkweed (Asclepias verticillata)

Blooms: May-September

Plant Height: 1-3 ft

Needs dry soil and minimal water. Semi-shade tolerant.