Purpurascens is analogous in physical appearance to prevalent milkweed, but the blooms are a deeper purple colour and this species won’t get above your back garden with aggressive rhizomes and seeding. Learn more relating to this uncommon milkweed variety on our purple milkweed site. May be developed as a perennial http://milorzsss.ivasdesign.com/6914069/not-known-factual-statements-about-buy-weed-seeds-iowa