How to Grow Swamp Milkweed
Asclepias incarnata
Your complete guide to growing Swamp Milkweed.
📷 Wikipedia: Asclepias incarnataWhen to Plant Swamp Milkweed
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Swamp Milkweed
✓ Good companions
Compatible wetland plant that provides structural diversity and different bloom timing
Native wetland companion that attracts beneficial insects and provides late-season nectar
Thrives in same wet conditions, attracts hummingbirds and creates layered pollinator garden
Similar moisture and sun requirements, attracts complementary pollinators and creates beneficial hab…
Extends blooming season into fall, supports monarch butterflies during migration
Shares preference for moist soil and partial shade, attracts specialized native bees
Attracts beneficial insects and pollinators while tolerating similar moisture conditions
Provides ground cover in moist conditions without competing for pollinators
✗ Keep away from
Produces juglone which is toxic to many plants including milkweeds
Aggressive invasive ground cover that can smother native wildflowers
Allelopathic oils inhibit growth of nearby native plants
Invasive wetland plant that outcompetes native species for resources and space
