Asclepias incarnata
swamp milkweed
 
Grows to 1m tall
Summer/ autumn flowering
Moist but well-drained soil
Full sun
Chalk, sand, clay
 
A lovely plant carrying heads crowded with waxy, rose-pink to red flowers on branching stems. The plant is well clothed with broad, lance shaped leaves. The Monarch butterflies go for this just as they do for the Swan Plant. Native to North America.