A. purpurascens is an erect, deciduous perennial with ovate to oblong, pointed, dark green leaves, slightly hairy beneath, and nearly spherical umbels of tiny, reddish-purple to reddish-pink flowers from late spring into summer.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils
If you don’t want additional seedlings next spring, simply cut off the seed pods before they pop open or bind them shut with twist ties or rubber bands if you want to collect purple milkweed seeds.
Although no specific reports have been seen for this species, many, if not all, members of this genus contain toxic resinoids, alkaloids and cardiac glycosides. They are usually avoided by grazing animals