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Swamp Milkweed growing in native home garden in summer
Tall Swamp Milkweed plug tray in greenhouse
Swamp Milkweed growing in native home garden in summer
Tall Swamp Milkweed plug tray in greenhouse
Asclepias incarnata

Swamp Milkweed

Plants

32 Plug Tray $79.80
50 Plug Tray Out of Stock

Description

Swamp Milkweed (Asclepias incarnata) is a showy, sweet-scented native with clusters of rosy pink blooms and a soft vanilla fragrance. A favorite host plant for Monarchs and Swallowtails, it supports pollinators throughout mid-summer.

This deer-resistant milkweed thrives in moist soils—ideal for rain gardens, pond edges, and wetlands—but can handle average garden conditions too. After blooming, its tall stems produce large seed pods that release fluffy seeds to the wind.

Great for native gardens, restoration sites, and anyone looking to support butterflies at home.

Also known as: Rose Milkweed.

Seed Details

Weight 15 lbs
Dimensions 22 × 12 × 11 in

Range Map

Swamp Milkweed native range

Details

SociabilityRhizomes
Sun RequirementsFull Sun
Soil MoistureMesic, Wet, Wet-Mesic
BenefitsBees, Birds, Butterflies, Deer Resistant, Pollinators
Height3-4'
USDA Zones3, 4, 5, 6, 7, 8, 9
Bloom ColorPink
Bloom PeriodJune, July, August
Plant Spacing18-24"

Seeds & Seed Mixes:

Seeds and seed mixes ship nationwide, year-round, typically within 3–5 business days. If you would like to postpone a seed mix shipment until fall, please note this at checkout.

Live Plants:

Live plants are available year-round while inventory lasts and ship to all states except California, Arizona, Oregon, Washington, Nevada, Alaska, and Hawaii. After your order is placed, we’ll contact you to coordinate a spring shipping window, as many plants are overwintered and ship once dormancy breaks.

Estimated shipping for 2026 plant orders begins in mid-April, weather permitting.

If you’re looking to secure plants in advance or need larger quantities for a project, we offer contract growing options. Contact us to discuss your needs and request a quote. Additional species not listed online may also be available through contract grow.

Live Stakes:

Live stakes are available by request only and must be ordered by submitting a contact form. Ordering is open seasonally from November 1 through February 28. A minimum of 100 stakes per order is required, with at least 25 stakes per species.

Live stakes ship only to the following states: Missouri, Minnesota, South Dakota, North Dakota, Nebraska, Kansas, Oklahoma, Arkansas, Tennessee, Kentucky, Illinois, Indiana, Ohio, Michigan, and Iowa.

PLS stands for Pure Live Seed, an industry-standard measure of seed quality. It reflects the portion of seed in a batch that is viable and capable of germinating.

What this means for you: when you purchase 1 lb. of PLS seed, the physical weight of the seed you receive will be slightly more than 1 lb. That’s because we account for non-viable seed and natural inert material upfront, so you receive a full pound of live, plantable seed.

Many companies sell bulk seed by total weight, which can include filler and non-viable seed. By pricing based on PLS, we make sure you’re getting exactly what you paid for—high-quality native seed with more predictable, successful germination.

Want to dive deeper? Check out our in-depth article on what PLS is and why it matters.