Narrowleaf Milkweed

Narrowleaf Milkweed is a West Coast native, especially common in California’s valleys, foothills, and open woodlands. This slender, airy perennial grows 2 to 4 feet tall with whorled, linear leaves that give it a distinctive wispy appearance in the landscape. From late spring through summer, it produces rounded flower clusters in soft shades of pink, lavender, and pale white, which are rich in nectar and attract a wide range of pollinators—especially native bees, beetles, and butterflies.

As with other milkweeds, it is an essential host for Monarch butterfly larvae, providing the only food source for their caterpillars. The plant dies back to the ground in winter and returns in spring. It is drought-tolerant and prefers full sun and well-drained soils but can adapt to a variety of conditions.

• Cut back old growth in winter or early spring to encourage fresh shoots.
• Avoid excessive watering or fertilization; thrives best in lean, dry soil.
• Watch for aphids in midsummer; they rarely harm the plant but can be managed with a strong spray of water.
• Allow some seedlings to grow in place if you want to expand your patch, or thin if space is limited.