General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Plant Height: 24 - 48 inches
Plant Spread: 18 - 24 inches
Leaves: Unusual foliage color
Other: Can spread somewhat rapidly by rhizomes. This plant is considered by many gardeners to be too vigorous and weedy for borders.
Flowers: Showy
Other: Flowers are a nectar source for many butterflies and leaves are a food source for monarch butterfly larvae (caterpillars).
Flower Color: Other: Rose-pink to purple
Bloom Size: Under 1"
Flower Time: Late spring or early summer
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
Self fertile
Stratify seeds: 3 months at 40 degrees
Suitable for wintersowing
Can handle transplanting
Other info: Easily grown from seed, and will self-seed in the landscape if seed pods are not removed prior to splitting open.
Propagation: Other methods: Division
Pollinators: Moths and Butterflies
Bees
Various insects
Containers: Not suitable for containers

Image
Common names
  • Purple Milkweed
  • Milkweed

Photo Gallery
Location: All pictures taken in/on my gardens/greenhouse/property
Date: 2017-07-15
Location: western Oregon
Date: spring 2014
Location: Fairfax, VA | June, 2022
Location: All pictures taken in my gardens
Date: 2013-06-30
Location: Central Arkansas
Date: 2016-06-04
Asclepias purpurascens - Purple Milkweed bloom
Location: Lucketts, Loudoun County, Virginia
Date: 2014-06-15
Our favorite milkweed
Location: western Oregon
Date: 2017-04-30
Location: Indian Cave State Park in Nebraska
Date: 2012-05-16
Location: western Oregon
Date: 2015-12-17
Location: Fairfax, VA | June, 2022
Location: Indian Cave State Park in Nebraska
Date: 2012-05-16

Date: 2009-06-05
Location: Lucketts, Loudoun County, Virginia
Date: 2014-06-13
Uploaded by robertduval14
Location: Lucketts, Loudoun County, Virginia
Date: 2014-07-17
Seed pods

Date: 2016-05-14

photo by Derek Ramsey.
Comments:
  • Posted by SongofJoy (Clarksville, TN - Zone 6b) on Jan 15, 2012 4:51 PM concerning plant:
    Occurring widely in the northeast in thickets, open woods, and fields, Purple Milkweed is similar to common Milkweed except that it has much deeper rose-pink flowers and more pointed leaves. Plants form clumps 2 to 3 feet tall and wide and have stout straight stems topped by beautiful mid-summer rosy-purple flower balls. Butterflies LOVE their nectar and Monarch butterfly caterpillars love their leaves. Easy to grow in dry, poor to average soil, in full sun. Plants may seed and form colonies. (Sunlight Gardens)
Plant Events from our members
lovesblooms On March 1, 2020 Seeds sown
winter sow
lovesblooms From March 3, 2018 to March 10, 2018 Seeds sown
indoors
lovesblooms On February 19, 2017 Seeds germinated
lovesblooms On February 4, 2017 Seeds sown
indoors
ricelg On January 3, 2018 Maintenance performed
Placed seeds on paper towel moistened with distilled water and sealed in Ziploc bag in refrigerator
MrsBinWY On July 7, 2020 Transplanted
5 with Allium atropupureum and Dutch Iris near corner of garage
MrsBinWY On June 2, 2020 Transplanted
3 by garlic in back where stone path curves around wood shed
MrsBinWY On February 4, 2020 Seeds germinated
4 - move the container to a heat mat, under LED lights
MrsBinWY On December 20, 2019 Seeds sown
WS 16 seeds from Prairie Moon C(30) in milk jug (put outside 12-26-19). Back inside on 1-26-20.
MrsBinWY On February 2, 2019 Seeds sown
WS last of seeds from Mlle.butterfly's 2013G; didn't get germination on these previously (2014 & 2015); brought back inside 5-19-19
MrsBinWY On February 15, 2016 Seeds sown
WS ~20 (all) seeds from duane123's 2014G in milk jug; these germinated, were planted out and came back in 2017 but not in 2018
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