Asclepias viridiflora (Green Comet Milkweed)
Asclepias viridiflora (Green Comet Milkweed)
60 (80)cm, Green Comet Milkweed makes erect stems with light green flowers in a dense umbel above broad, opposite leaves. It is native of rocky, open areas in prairies in the USA (Georgia, north-eastern Mexico, Ontario and S New England). For any humus rich, very well drained, preferably rocky soil in full sun. VII-VIII.More Details »