purple milkweed Asclepias purpurascens Type:Monarch larval hosts, native plants, perennials that last Notable Traits:attracts butterflies/pollinators, butterfly caterpillar food, low-maintenance, midwest native, resistant: deer, resistant: disease, resistant: rabbit, tolerates clay soil, tolerates harsh roadside conditions Hardiness:Zone 3 – 8 Mature Height:24-36in Light:sun (8+ hrs) Water:drought tolerant Bloom Color:magenta, pink Bloom Shape:flathead Bloom Time:summer Foliage:green Description Native to the Eastern, Southern and Midwestern United States similar to the range of the common milkweed, the flowers of this Monarch butterfly larval host plant are a brilliant magenta.