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Spider Milkweed

Asclepias viridis

Early blooming milkweed; foliage consumed by monarch caterpillars; stem with pods used for dried bouquets



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Asclepias viridis, commonly known as Spider Milkweed, Green Antelopehorn, or Green-Flowered Milkweed, is a native perennial forb (wildflower). Stems and leaves exude a milky sap when cut or bruised.  Tiny green flowers with purple hoods bloom in many-flowered axillary and terminal umbels from May to June.

Wildlife notes

Spider Milkweed is attractive to Monarch butterflies and other insects. Typically avoided by mammalian herbivores.

Forage notes

Generally avoided by cattle and horses.

Landscaping notes

Easily grown in average, dry to medium moisture, well-drained soils in full sun. Drought tolerant. Easily grown from seed and will self-seed in the landscape if seed pods are not removed prior to splitting open. Plants will also spread by rhizomes, but are not considered to be aggressive. Seed pods are valued in dried flower arrangements. Butterfly gardens, meadows, prairies, or naturalized/native plant areas. Borders.

Restoration notes

It can be found along roadsides, ditches, prairies, open areas, and other areas with little vegetative competition.

Additional information

Weight N/A

Packet, Ounce, Pound


Full Sun

Seeding Rate

9 bulk lbs/acre


Dry, Average



Bloom Month

May, Jun


Green, Purple

Specialty Uses

Butterfly, Cut Flower

# seeds/pkt


Packet coverage area

5 sq. ft

What is PLS?

Pure Live Seed (PLS) is the portion of good viable seed per pound. It is a measure of the seed that is alive and able to sprout into plants. This product is sold by PLS ounce/pound. To provide one ounce/pound of viable seed, you will receive more than one ounce/pound of product. Read more about PLS here.