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Red milkweed

Asclepias rubra

Red milkweed
Photo: peganum from Henfield, England, CC BY-SA 2.0

Red milkweed is a perennial wetland milkweed native to bogs and wet savannas from New York south to Florida and west to Texas. It needs moist, acidic soil and sun or part shade, and it is a key larval food plant for monarch butterflies.

Family
Apocynaceae (Dogbane family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep the soil consistently moist, as it grows naturally in wet bogs and wetland margins.
Soil
Moist, acidic, wet soil such as bog or boggy garden mix.
Temperature
Hardy in temperate climates; tolerates cold winters as a perennial.
How easy
Moderate
Safety
Toxic: Milkweeds (Asclepias) contain cardiac glycosides in their sap and leaves that can cause poisoning if eaten in quantity.
Native range
New York to Texas
Climate
temperate

About

Asclepias rubra, the red milkweed, purple savanna milkweed, or tall pink bog milkweed, is a species of milkweed. It inhabits bogs and wetlands. It is a perennial wetland species, native to New York, south to Florida, west to Arkansas and Texas.

It blooms late spring to summer. The flowers are purple, red, or pink. The plant is the larval food of the monarch butterfly. The growing conditions are moist, acidic soil, and full sunlight or partial shade and at elevations of 0-300m.

Other Asclepias plants

Cartwheels · Whitestem milkweed · Spider milkweed · California milkweed · Heartleaf milkweed · Bloodflower · Curtiss' milkweed · Woollypod milkweed · Desert milkweed · Poke milkweed · Mexican whorled milkweed · Florida milkweed

Text excerpted from the Wikipedia article Asclepias rubra by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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