Green or green-flowered milkweed is an erect perennial that grows to 20-30" tall on usually upright stems. Tiny green flowers with purple hoods bloom in many-flowered axillary and terminal umbels from May to June. Each tiny flower (to 1” long) has 5 upright pale green corolla lobes (petals) and 5 purple hoods. Seed pods are valued in dried flower arrangements. Flowers are a nectar source for many butterflies, and leaves are a food source for monarch butterfly larvae (caterpillars). Asclepias comes from the name of the Greek god of healing. Viridis from Latin means green in reference to flower color. Easily grown in average, dry to medium moisture, well-drained soils in full sun. Drought tolerant. USDA Zones, 5-9.