These Seeds are from Asclepias ovalifolia, also known as Dwarf Milkweed, and Oval leaf Milkweed. This plant can get up to about two feet high and likes to grow in full sun to light shade where it attracts a wide variety of birds, bees, and butterflies. The blossoms are mostly white with green and pink tinges and they are most impressive in the middle of the Summer. Asclepias in general are documented nectar sources for the Monarch, Orange-edged Roadside-Skipper, Dina Yellow, Carus Skipper, Eastern Tiger Swallowtail, and Falcate Metalmark butterflies. It is also the nectar source for the Clarks sphinx, and Milkweed Tussock moths. USDA Hardiness Zones 5 to 9.