Spider Milkweed (Asclepias viridis) in the Milkweeds Database

Common names:
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Botanical names:
Asclepias viridis Accepted
Asclepiodora viridis Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Plant Height: 12 - 24 inches
Plant Spread: 12 - 24 inches
Leaves: Other: Alternate, fleshy, up to 5" long and 2" wide, w/ wavy margins.
Flowers: Showy
Flower Color: Green
Other: Green .Each flower 1" across, w/ 5 green petals spread upward. Inside flower are 5 purple structures called hoods; flowers form flower clusters up to 5" diameter at the top of the stem.
Bloom Size: Under 1"
Flower Time: Late spring or early summer
Underground structures: Taproot
Uses: Will Naturalize
Wildlife Attractant: Bees
Resistances: Deer Resistant
Rabbit Resistant
Toxicity: Leaves are poisonous
Roots are poisonous
Propagation: Seeds: Provide light
Stratify seeds: 3 months at 40 degrees
Suitable for wintersowing
Other info: Seedpods are up to 6" long and an inch thick. Each seed has a tuft of long white hairs.
Containers: Not suitable for containers

Green Milkweed blooms.

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 jmorth (central Illinois) on Nov 25, 2011 6:00 PM

Found in prairie habitats.
Of the 18 milkweeds known to occur in Illinois (the Prairie State), this one has the largest flowers.
Thick stemmed, w/ milky sap.

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Posted by SongofJoy (Clarksville, TN - Zone 6b) on Dec 13, 2012 10:27 AM

This plant is used by Monarchs, Queens, and Soldiers as a caterpillar food source. It is very important to Monarchs as they move northward from Mexico through Texas. A few other caterpillars use the milkweed as food, but the nectar is relished by many butterflies including Swallowtails, Whites, Checkerspots, as well as a number of others.

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Plant Events from our members
MrsBinWY On June 4, 2017 Potted up
MrsBinWY On February 18, 2017 Seeds sown
coffee filter in baggie in fridge for 30 days; 16 seeds from luvsgrtdanes; milk jug on 3-22-17, 3 radicals showing, 1 seed rotted
Anndixon On August 11, 2018 Plant Ended (Removed, Died, Discarded, etc)
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Growing Milkweeds by luvsgrtdanes Oct 26, 2017 7:49 PM 371
what is that plant? by wangqiaojuan Aug 4, 2016 9:57 AM 5
Asclepias asperula or a subspecies or another milkweed? by wildflowers May 26, 2016 11:59 AM 10
Milkweed plant distribution for monarchs by Shadegardener Aug 26, 2015 3:27 PM 16
Hieracium; growing wild by flaflwrgrl Sep 10, 2015 11:22 AM 114
Periploca angustifolia aka Periploca laevigata by treehugger Mar 19, 2015 6:53 PM 12
Are you sowing any new wildflowers this year? by SongofJoy Feb 17, 2013 1:41 PM 8
Interesting. Love the leaves. by flaflwrgrl Apr 14, 2012 6:36 PM 6
Green Milkweed by Horntoad Jul 13, 2010 8:42 PM 3

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