North America Native Plant

Pinewoods Milkweed

Botanical name: Asclepias humistrata

USDA symbol: ASHU3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Pinewoods Milkweed: A Low-Growing Native Treasure for Southern Gardens If you’re looking for a native plant that marches to the beat of its own drum, meet pinewoods milkweed (Asclepias humistrata). While most milkweeds reach skyward, this quirky cousin prefers to sprawl horizontally across the ground, creating a unique carpet of ...

Pinewoods Milkweed: A Low-Growing Native Treasure for Southern Gardens

If you’re looking for a native plant that marches to the beat of its own drum, meet pinewoods milkweed (Asclepias humistrata). While most milkweeds reach skyward, this quirky cousin prefers to sprawl horizontally across the ground, creating a unique carpet of butterfly-attracting blooms that’s perfect for Southern gardens.

What Makes Pinewoods Milkweed Special

Pinewoods milkweed is a perennial native to the southeastern United States, naturally found across Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina, and South Carolina. This low-growing member of the milkweed family stands out from its taller relatives with its distinctive horizontal growth pattern and charming clusters of pink to purple flowers.

Unlike the towering common milkweed that might dominate a garden bed, pinewoods milkweed stays close to the ground, typically reaching only 1-2 feet in height but spreading 2-3 feet wide. This makes it an excellent choice for gardeners who want the ecological benefits of milkweed without the height.

Why Your Garden (and Local Wildlife) Will Love It

As a native plant, pinewoods milkweed has evolved alongside local wildlife and provides essential benefits that non-native plants simply can’t match:

  • Monarch butterfly magnet: Like all milkweeds, it serves as both a nectar source for adult monarchs and a host plant for their caterpillars
  • Pollinator paradise: The fragrant flowers attract a variety of native bees, butterflies, and other beneficial insects
  • Low-maintenance beauty: Once established, it’s drought tolerant and requires minimal care
  • Unique ground cover: Its horizontal growth habit makes it perfect for covering sandy or difficult areas

Perfect Growing Conditions

Pinewoods milkweed thrives in USDA hardiness zones 8-10, making it ideal for warm Southern climates. This adaptable native prefers:

  • Soil: Sandy, well-drained soils (it actually loves what many other plants consider poor soil)
  • Sunlight: Full sun to partial shade
  • Water: Drought tolerant once established, though it appreciates occasional watering during dry spells
  • Space: Give it room to spread—it likes to sprawl!

Growing and Care Tips

The best part about pinewoods milkweed? It’s refreshingly easy to grow:

  • Planting: Spring is the ideal time to plant. Space plants 2-3 feet apart to accommodate their spreading habit
  • Watering: Water regularly the first year to help establish roots, then reduce watering as it becomes drought tolerant
  • Fertilizing: Skip the fertilizer—this native thrives in lean, sandy soils
  • Maintenance: Deadhead spent flowers if you want to prevent self-seeding, or let it naturalize for a wild look
  • Winter care: In its native range, it may die back in winter but will return in spring

Garden Design Ideas

Pinewoods milkweed works beautifully in several garden settings:

  • Native plant gardens: Combine with other southeastern natives like purple coneflower and black-eyed Susan
  • Butterfly gardens: Plant alongside other butterfly favorites for a pollinator buffet
  • Coastal gardens: Its tolerance for sandy soils makes it perfect for seaside landscapes
  • Ground cover: Use it to cover slopes or areas where grass struggles
  • Wildflower meadows: Let it naturalize for a carefree, wild appearance

A Few Things to Keep in Mind

Like all milkweeds, pinewoods milkweed produces a milky sap that can be irritating to skin and toxic if ingested. Wear gloves when handling, and keep away from children and pets who might be tempted to nibble.

Also, don’t be surprised if it takes its time getting established—many native plants are slow starters but long-term champions once they settle in.

The Bottom Line

Pinewoods milkweed might not be the showiest plant in your garden, but it’s definitely one of the most valuable. For Southern gardeners looking to support native wildlife while adding a unique, low-maintenance ground cover to their landscape, this humble milkweed delivers big benefits in a small package. Plus, there’s something deeply satisfying about growing a plant that monarch butterflies have depended on for thousands of years—you’re not just gardening, you’re participating in an ancient ecological relationship.

Pinewoods Milkweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Gentianales

Family

Asclepiadaceae Borkh. - Milkweed family

Genus

Asclepias L. - milkweed

Species

Asclepias humistrata Walter - pinewoods milkweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA