Whorled Milkweed (Asclepias verticillata) in the Milkweeds Database

1 company sells this plant

Common names:
Give a thumbs up Whorled Milkweed
Give a thumbs up Whorled-leaf Milkweed
Give a thumbs up Horsetail Milkweed
Give a thumbs up Milkweed
Give a thumbs up Eastern Whorled Milkweed

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Plant Height: 6 - 24 inches
Plant Spread: 6 inches
Leaves: Other: long thin leaves in whorls around stem
Fruit: Showy
Fruiting Time: Fall
Flowers: Showy
Flower Color: White
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Underground structures: Rhizome
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Drought tolerant
Toxicity: Leaves are poisonous
Roots are poisonous
Propagation: Seeds: Provide light
Stratify seeds: 3 months at 40 degrees
Suitable for wintersowing
Propagation: Other methods: Division
Pollinators: Wasps
Moths and Butterflies
Containers: Not suitable for containers
Miscellaneous: Tolerates poor soil


Establishing a Monarch WaystationEstablishing a Monarch Waystation
August 23, 2013

It doesn’t take a lot of space or expense to establish a Monarch Waystation, and the rewards can be great.

(Full article50 comments)
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Posted by Chillybean (Iowa - Zone 5a) on Aug 12, 2015 3:40 PM

A conflicted plant, according to the USDA web page. In Massachusetts, it is classified as Threatened; Rhode Island has it listed as Special Concern, yet in Nebraska and in the South it is considered weedy.

I discovered the plant for the first time along our gravel road this summer. Even before knowing its name, I recognized that special Milkweed flower with a skirt. Because it is growing right where the grater grates, I pulled one up and quickly got it into the ground with similar conditions. Since that time, many more white flowers, which to the untrained eye would be easy to overlook, have bloomed next to the road. Small white flowers, nothing really special.

I am watching this plant to see whether any pods will form in the hope that I will later find some in my prairie area.

About this plant's use for Monarchs, I cannot say that they won't use this, but in my limited experience I have yet to see any signs of the butterflies or the larvae feeding off this. The leaves are rather small compared to the Common and Swamp. If there is a large patch of it, there'd be plenty to consume. Some months ago, I read an article saying that scientists are studying which Milkweed plants the Monarchs favour. I hope they come up with good conclusions, so more people will plant what the declining insect needs.

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Posted by jmorth (central Illinois) on Dec 16, 2011 3:11 AM

Prefers a hot and dry spot, but will tolerate moist garden soils.
Flower clusters to 3" across. Plant is 1 to 2 feet tall with equal spread.
Grey-green foliage turns yellow and orange in fall.
A preferred food source for butterfly larvae, especially the Monarch.

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Posted by virginiarose (Virginia) on Jan 2, 2014 7:43 AM

This plant was linked to the death of 19 horses when it was found inside the hay that was fed to the horses.

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Posted by Cyclaminist (Minneapolis, Minnesota - Zone 5a) on May 20, 2016 9:43 AM

A short and slender milkweed. It spreads by slender white rhizomes like garden.org/plants/view/75378/, but I don't mind because it's so delicate and interesting, and my gardens aren't very organized. Unfortunately, because I don't use edging, it does creep into lawn areas.

It doesn't do that well with lots of taller plants (more than 3 feet) around. I suspect that's why it's more common in the Great Plains than in the Northeast.

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Plant Events from our members
aspenhill On May 4, 2012 Obtained plant
DG David (greenthumb99) and Pat (ecnalg) - qty 2
Chillybean On September 15, 2015 Miscellaneous Event
Collected the few seeds. The plants were not well pollinated this year.
Anndixon On June 11, 2018 Obtained plant
MrsBinWY On December 23, 2018 Seeds sown
WS 16 seeds from ishareflower's commercial seed swap
MrsBinWY On January 20, 2018 Seeds sown
WS 12 seeds (all) from Arcadiaseeker (no luck with these)
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
butterfly weed by mnmat Aug 25, 2018 12:48 PM 19
November 2016 Butterflies, Moths & Larva by mellielong Nov 30, 2016 10:03 PM 180
August 2015 Butterflies, Moths & Larva by mellielong Sep 1, 2015 12:28 PM 565
Milkweed by PeggyC Jun 1, 2018 5:45 PM 13
Are you sowing any new wildflowers this year? by SongofJoy Feb 17, 2013 1:41 PM 8

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