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Description
Asclepias Exaltata, commonly known as the tall milkweed, is a herbaceous perennial plant that belongs to the family Apocynaceae. It is native to eastern North America and can grow up to a height of 6 feet. The plant has a slender stem with long, narrow leaves that are arranged oppositely on the stem. The flowers of Asclepias Exaltata are white or greenish-white and are arranged in clusters at the top of the stem. The plant blooms from late spring to early fall and attracts a variety of pollinators, including bees and butterflies.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Angiospermae |
| Order | Gentianales |
| Family | Apocynaceae |
| Genus | Asclepias |
Appearance
The tall milkweed has a slender stem that can grow up to 6 feet tall. The leaves are long and narrow, with a length of up to 10 inches and a width of 2 inches. The leaves are arranged oppositely on the stem and are smooth and green. The flowers of Asclepias Exaltata are white or greenish-white and are arranged in clusters at the top of the stem. The flowers have five petals that are reflexed backwards and a central crown. The plant produces a long, narrow seed pod that contains seeds with silky hairs that help them disperse in the wind.
Care Guide
Asclepias Exaltata is a low-maintenance plant that requires little care once established. Here are some care tips:
- Water: The plant prefers well-draining soil and moderate watering. Avoid overwatering as it can lead to root rot.
- Fertilization: The plant does not require fertilization. However, you can add organic compost to the soil before planting for better growth.
- Soil: The plant prefers well-draining soil that is rich in organic matter.
- Sunlight: The plant requires full sun to partial shade to grow well.
- Hardiness Zones: The plant is hardy in USDA zones 4 to 9.
Common Pests & Diseases
Asclepias Exaltata is relatively pest resistant. However, it can be susceptible to aphids, spider mites, and whiteflies. These pests can be controlled using insecticidal soap or neem oil. The plant is also susceptible to fungal diseases such as powdery mildew and leaf spot. These diseases can be prevented by ensuring good air circulation and avoiding overwatering.
Habitat
Asclepias Exaltata is native to eastern North America and can be found growing in open woods, glades, and meadows. The plant prefers well-draining soil and full sun to partial shade.
Question and Answer
Q: Is Asclepias Exaltata a host plant for monarch butterflies?
A: Yes, Asclepias Exaltata is a host plant for monarch butterflies. The plant provides food for the caterpillars of the monarch butterfly.
Q: Can Asclepias Exaltata grow in containers?
A: Yes, Asclepias Exaltata can be grown in containers. However, the plant requires a deep container as it has a long taproot.
Q: When is the best time to plant Asclepias Exaltata?
A: The best time to plant Asclepias Exaltata is in the spring or fall when the weather is mild.
Q: Can Asclepias Exaltata tolerate drought?
A: Yes, Asclepias Exaltata can tolerate drought once established. However, it prefers moderate watering.
Related Plants
- Asclepias Tuberosa – Butterfly weed
- Asclepias Incarnata – Swamp milkweed
- Asclepias Syriaca – Common milkweed
- Asclepias Curassavica – Bloodflower
References
- USDA Plants Database. (n.d.). Asclepias exaltata (L.) Muhl. Retrieved August 31, 2021, from https://plants.usda.gov/home/plantProfile?symbol=ASRE3
- Missouri Botanical Garden. (n.d.). Asclepias exaltata. Retrieved August 31, 2021, from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=282983&isprofile=1&basic=asclepias
- Gardening Know How. (n.d.). Growing Asclepias Exaltata: Tips On Tall Milkweed Care. Retrieved August 31, 2021, from https://www.gardeningknowhow.com/ornamental/flowers/milkweed/tall-milkweed-care.htm
