Seed Swaps

Swamp milkweed      

Asclepias incarnata

  • 60 plantings
  • 9 for swap
  • 19 wanted
  • 40 stashed

Swamp milkweed is a member of the Asclepias family. Its botanical name is Asclepias incarnata.

Flowers are a nectar source for both butterflies and hummingbirds.
Attracts butterflies
Attracts caterpillars (Monarch)

Erect and clump forming plant native to Missouri, USA commonly found in swampy areas, river-bottom lands and wet meadows throughout the State. Grows from 3 to 4 feet tall and produces fragrant pink to mauve flowers and very rarely white.3

Blooms normally display as a colour very similar to   Baby pink and   Light fuchsia pink and   White. Leaves usually appear in   Kelly green and   Cadmium green

Swamp milkweed grows as a perennial and is a flower. Being a perennial plant, it tends to grow best over several years (approx 3 years and greater).

Swamp milkweed is known for its forb-like habit and growing to a height of approximately 60.96 cm (1.98 feet). This plant tends to bloom in mid summer.

Try planting Swamp milkweed if you'd like to attract butterflies and birds to your garden.

United States is believed to be where Swamp milkweed originates from.

Swamp milkweed is known to be toxic to humans and/or animals, so be careful where you position and how you handle this plant.

This plant info is provided by the myfolia gardener's wiki. All details about Swamp milkweed have been kindly provided by our members.

How to grow Swamp milkweed

  • Full Sun

  • Partial Sun

  • Very High

A full sun / partial sun position will ensure your plant thrives and remember to water very often. Use Zone 3 - Zone 9 as your guideline for the appropriate climate for this plant.

See our list of companion Plants for Swamp milkweed to see which plants you should plant in close proximity to encourage growth.

Growing Swamp milkweed from seed

Germination is very slow and benefits from cold stratification. Plant seeds on a moist medium, lightly covered and keep cool and moist but not freezing for several months, then place in moderately warm place.

Transplanting Swamp milkweed

How long does Swamp milkweed take to grow?

These estimates for how long Swamp milkweed takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Start logging and journaling your observations to participate!

Days to Germination How long does it take Swamp milkweed to germinate?
16 days

Average 16 days | Min 5 days | Max 112 days (4)

Days to Transplant How long until I can plant out Swamp milkweed?
+ 57 days

Average 57 days | Min 57 days | Max 58 days (2)

Days to Maturity How long until Swamp milkweed is ready for harvest / bloom?
+ 381 days

Average 381 days | Min 381 days | Max 381 days (1)

Total Growing Days How long does it take to grow Swamp milkweed?
= 454 days

Swamp milkweed Etymology

Aesculapius is the Greek god of medicine due to milkweeds being historically used medicinally. Incarnata means flesh-colored.

Swamp milkweed Folklore & Trivia

During WWII the silky part attached to the seeds was used for life jackets.456 Milkweed is more bouyant then cork by 5 or 6 fold.456

Other names for Swamp milkweed

Rose milkweed, Milkweed

Misspellings: butterflyweed, milk weed,

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