Clasping Milkweed | Asclepias amplexicaulis | Family: Apocynaceae | Origin: Minnesota to Florida and Texas | Description: Herbaceous perennial to 3 ft. | Flowering Season: Late Spring to Summer | Exposure: Full sun to partial shade | Moisture: Average (well-drained and sandy) | USDA Hardiness Zones: 4-9 | Nectar Value: 3/5 Good nectar source and Host plant for Monarch