Prairie Milkweed (Asclepias sullivantii) in the Milkweeds Database

Common names:
Give a thumbs up Prairie Milkweed
Give a thumbs up Sullivant's milkweed
Give a thumbs up Smooth milkweed
Give a thumbs up Milkweed

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Wet Mesic
Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 7b
Plant Height: 24 - 48 inches
Plant Spread: 12 - 18 inches
Leaves: Other: Smooth milkweed (also commonly known as Sullivant's milkweed and prairie milkweed) is a rough, weedy perennial which is very similar to common milkweed (Asclepias syriaca) except smooth milkweed has (a) smooth (glabrous) stems, leaves and seed pods, (b) l
Fruit: Showy
Other: Smooth seed pods (2-4" long) which split open when ripe releasing their numerous silky-tailed seeds for dispersal by the wind.
Flowers: Showy
Fragrant
Other: Flowers are a nectar source for many butterflies and leaves are a food source for monarch butterfly larvae (caterpillars).
Flower Color: Pink
Other: Pinkish-white to pinkish-purple
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Summer
Other: Long bloom period from late spring well into summer
Underground structures: Rhizome
Uses: Will Naturalize
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Rabbit Resistant
Toxicity: Leaves are poisonous
Roots are poisonous
Propagation: Seeds: Provide light
Stratify seeds: 1 month at 40 degrees
Suitable for wintersowing
Other info: Easily grown from seed, and may self-seed in the landscape if seed pods are not removed prior to splitting open.
Propagation: Other methods: Division
Pollinators: Wasps
Moths and Butterflies
Bees
Containers: Not suitable for containers

Image

Photo gallery:

Comments:
Posted by jmorth (central Illinois) on Feb 2, 2012 5:01 AM

Occasionally found in the northern two thirds of Illinois, rare elsewhere. It's presence is indicative .of a high quality moist to wet prairie. Summer bloomer.

[ Reply to this comment | Give a thumbs up ]

Discussion Threads about this plant
Thread Title Last Reply Replies
Milkweed ID Needed by jimard8 Jun 25, 2017 8:53 AM 8
Legal or illegal to pick michigan wildflower? by bhart90 Jul 24, 2016 12:15 PM 63
prairie milkweed ??? by Pegasys Jun 4, 2016 7:05 PM 9
June 2016 Butterflies, Moths & Larva by mellielong Jul 1, 2016 10:15 AM 329
OK Monarchs - Bring it on - I am ready by DavidLMO Aug 31, 2016 10:42 AM 124
Anyone Familiar with Restoring Prairie? by Chillybean Feb 15, 2016 1:15 PM 24

« Add a new plant to the database

» Search the Milkweeds Database: by characteristics or by cultivar name

« See the general plant entry for Milkweeds (Asclepias)

« The Milkweeds Database Front Page

« The Plants Database Front Page

Today's site banner is by EscondidoCal and is called "Papyrus in Morning Sun"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.