FNPS Plant Database
Asclepias tomentosa
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Nomenclature
Common Name:
Synonym(s):
Asclepias megalotis, Asclepias aceratoides
Genus species:
Asclepias tomentosa
Family:
Apocynaceae
Plant Specifics
Form:
Size:
2-3 ft
Life Span:
Flower Color:
Fruit Color:
Phenology:
Noted For:
Landscaping
Recommended Uses:
Considerations:
Availability:
Propagation:
Seed
Light:
Moisture Tolerance:
Always Flooded------------------------------------------------Extremely Dry
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<----------------->
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Not wet but not extremely dry ---to--- Somewhat long very dry periods
Salt Water Flooding Tolerance:
Unknown
Salt Spray/Salty Soil Tolerance:
Unknown
Soil or Other Substrate:
Sand
Soil pH:
Suitable to Grow In:
8A, 8B, 9A, 9B, 10A

USDA zones are based on the average annual extreme minimum winter temperature.

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Ecology
Wildlife:
Larval host for monarch (Danaus plexippus), queen (Danaus gilippus) and soldier (Danaus eresimus) butterflies. Nectar plant for many butterfly species.
Native Habitats:
Scrub, sandhill, edges of xeric hammocks, scrubby flatwoods
Natural Range in Florida:
Visit the USF Libraries Atlas of Florida Plants
Comments:
Ethnobotany:
General Comments:
Predominantly a Florida plant, but it has also been recorded in Georgia, South Carolina, North Carolina, and Texas. The species name "tomentosa" refers to the dense, matted (tomentose) hairs on the leaves. Aphids are often a "problem" with milkweed plants -- they are a natural predator on Asclepias. Eliminating pesticides from the garden will encourage the presence of predatory insects that will consume the aphids.
Citations:
BONAP Plant Atlas. 2014. https://bonap.net/MapGallery/County/Asclepias%20tomentosa.png, accessed 2025. Biota of North America Program, Chapel Hill, NC.
Hammer, Roger. 2018. Complete Guide to Florida Wildflowers. Falcon Guides, Guilford, CT.
Minno, Marc and Maria Minno. 1999. Florida Butterfly Gardening: A Complete Guide to Attracting, Identifying, and Enjoying Butterflies. University Press of Florida, Gainesville.
Taylor, Walter K. 2013. Florida Wildflowers: A Comprehensive Guide. University Press of Florida, Gainesville.
Tras, Pamela. 2001. Gardening for Florida's Butterflies. Great Outdoors Publishing, St. Petersburg, FL.
Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2021. Atlas of Florida Plants. https://florida.plantatlas.usf.edu/ , accessed 2025. Institute for Systematic Botany, University of South Florida, Tampa.






