Contents
Description
Sorghastrum is a genus of grasses that are commonly known as Indian grass. These grasses are native to North America and are known for their ornamental value in the garden. They are clumping grasses that can grow up to 7 feet tall and 3 feet wide. Sorghastrum is a warm-season grass that blooms in late summer or early fall, producing feathery panicles of yellow flowers that turn bronze as they mature. They are easy to grow and maintain, making them a popular choice among gardeners.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Monocotyledonae |
| Order | Poales |
| Family | Poaceae |
| Genus | Sorghastrum |
Appearance
Sorghastrum has long, narrow leaves that are blue-green in color and can grow up to 2 feet long. The leaves are arranged alternately on the stem and have a rough texture. The stems are tall and sturdy, with a reddish-brown color. The flowers are produced in feathery panicles that can be up to 1 foot long and turn bronze as they mature. The seeds are small and produced in clusters at the base of the panicles.
Care Guide
When it comes to caring for Sorghastrum, it’s important to provide the right growing conditions. Here are some tips:
- Water: Indian grass prefers well-drained soil and can tolerate drought conditions. Water regularly during the first growing season to establish a strong root system.
- Fertilization: Sorghastrum doesn’t require much fertilization, but a light application of a balanced fertilizer in the spring can help promote growth.
- Soil: Indian grass prefers well-drained soil that is rich in organic matter. It can tolerate a wide range of soil types, including clay and sandy soils.
- Sunlight: Sorghastrum prefers full sun but can tolerate some shade. It is a warm-season grass that thrives in hot, humid conditions.
- Hardiness Zones: Sorghastrum is hardy in USDA zones 4-9.
Common Pests & Diseases
Sorghastrum is generally resistant to pests and diseases, but it can be susceptible to rust and leaf spot. These diseases can be prevented by providing good air circulation and avoiding overhead watering. Pests such as grasshoppers and spider mites can also be a problem, but they can be controlled with insecticidal soap or neem oil.
Habitat
Sorghastrum is native to North America and can be found in prairies, meadows, and along roadsides. It prefers open, sunny areas with well-drained soil. Indian grass is an important component of tallgrass prairie ecosystems and provides habitat and food for a variety of wildlife, including birds and small mammals.
Question and Answer
Q: Is Sorghastrum an invasive species?
A: No, Sorghastrum is not considered an invasive species. It is a native grass that is well-behaved in the garden.
Q: How tall does Sorghastrum grow?
A: Sorghastrum can grow up to 7 feet tall.
Q: Can Sorghastrum be grown in containers?
A: Yes, Sorghastrum can be grown in containers, but it will require frequent watering and fertilization.
Q: When should Sorghastrum be planted?
A: Sorghastrum should be planted in the spring after the last frost or in the fall before the first frost.
Related Plants
- Andropogon
- Panicum
- Schizachyrium
- Sporobolus
References
- Dirr, M. A. (2009). Manual of woody landscape plants: their identification, ornamental characteristics, culture, propagation and uses. Stipes Pub. Llc.
- Hitchcock, A. S. (2010). Manual of the grasses of the United States. U of Montana P.
- Martin, L. J., & Johnson-Groh, C. L. (2016). Native plants of the Midwest: a comprehensive guide to the best 500 species for the garden. Timber Press.
