Narrowleaf Milkweed

Botanical Name   Asclepias fascicularis Also Known As   Mexican whorled Milkweed Specifications Plant Type   Native From   USDA Zone   Light Needs   Watering Needs   Leaves   Life Cycle   Avg. Mature Size   Growth Rate   Bloom Time   Flower Color   Herb CA 5 - 11 Partial - Full Sun Regularly Deciduous Perennial 2' Tall and 1' Wide Moderate Summer - Fall White/lavender Asclepias fascicularis is commonly known as Narrowleaf milkweed or Mexican whorled milkweed and is a common host plant for Monarch butterflies in the Western US. This is one of the many milkweeds on which the female Monarchs will lay their eggs so the baby caterpillars can eat and grow.