Asclepias incarnata
Swamp Milkweed
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Swamp Milkweed (Asclepias incarnata) - Description
A. incarnata is native to the eastern United States. It is a herbaceous perennial that grows to heights of 2 to 4 feet tall, and 2 feet wide. It bears narrow, pointed leaves that are 6 inches long. It also bears ball-shaped clusters of pinkish-purple flowers.
Swamp Milkweed (Asclepias incarnata) - Growth
Does best in full sun. May be slow to start seasonal growth in spring.
Swamp Milkweed (Asclepias incarnata) - Planting
Sow seeds in late winter when temperatures are averaging above 60°F (15°C). Basal cuttings should be made in spring.
Swamp Milkweed (Asclepias incarnata) - Pest
Prone to whiteflies and spider mites in areas of low air circulation. Aphids and mealybugs have a strong affinity for the plants when they are in bloom. Bacterial and fungal leaf spots are an issue in areas of high humidity.
Swamp Milkweed (Asclepias incarnata) - Interesting facts
Milkweeds are so named for their milky sap. The clusters of small, star like flowers attract butterflies. The seedpod-bearing stems of Swan or Goose Plants, when stripped of leaves and dried, can be used to make striking arrangements. Be warned that contact with the milky sap may cause skin irritation.
Swamp Milkweed (Asclepias incarnata) - Soil and irrigation
All Milkweeds need adequate drainage and moderate to heavy watering. Thrives in loamy soils.
