Asclepias fascicularis is native to California, and also found elsewhere in western North America. It is a flowering perennial sending up many thin, erect stems and bearing distinctive long pointed leaves which are very narrow and often whorled about the stem, giving the plant its common names. It blooms in clusters of lavender, pale pink, purple, white, to greenish shades of flowers. Spreads to form small colonies. The fruit pods are the smooth milkweed type, which split open to spill seeds along with plentiful silky hairs. Milkweeds are the only food source for the Monarch and Striated Queen caterpillars. This milkweed blooms from late spring to late summer. Easily grown in average, dry to medium moisture, well-drained soils in full sun. Drought tolerant. USDA Zones, 5-9.
Other Names: Mexican whorled milkweed, Narrowleaf milkweed, California Milkweed