Butterfly Weed Care Plant butterfly weed in late spring after the soil warms. Usually do not count on it to bloom the primary yr; flowering could just take 3 a long time. Blooms final about two months, from late spring right up until late summer season. A. tuberosa Fewflower Milkweed https://istropicalmilkweedaperenn86429.bloggactif.com/31851319/examine-this-report-on-milkweed-plants-annual-or-perennial