THE HUNTINGTON NARROW LEAF MILKWEED SEED PACKET

Narrow-leaf milkweed (Asclepias fascicularis) is best known as one of the host plants for monarch butterfly caterpillars. 

It is a sun-loving, upright perennial that goes dormant in late fall. New growth emerges from underground stems in late spring. Lavender to pinkish-white flowers support caterpillars that live and feed on the plants and migrating populations of adult butterflies that feed on their nectar. 

Growing instructions: For best results, plant seeds outdoors from March through June. Milkweed loves heat and will not germinate at cooler temperatures. Plant three to five seeds in each shallow hole; milkweed doesn’t mind growing close together. Keep soil moist while seeds sprout, usually in two to four weeks. Young plants need regular watering until they are established; spring showers can supplement water requirements. 

Plant information: 

Sun: full sun 

Water: low, once established 

Habit: upright, clumping perennial 

Height: 2 to 3 feet 

Spread: 1 foot