Butterfly Weed Care Plant butterfly weed in late spring once the soil warms. Usually do not expect it to bloom the 1st yr; flowering may perhaps just take three several years. Blooms last about two months, from late spring until eventually late summer time. A. tuberosa The leaves of Asclepias https://istropicalmilkweedaperenn99875.uzblog.net/new-step-by-step-map-for-are-milkweeds-perennials-or-annuals-44986920