Contents
Description
Chasmanthium is a genus of plants in the grass family, Poaceae. There are two species of Chasmanthium – Chasmanthium latifolium and Chasmanthium sessiliflorum. These plants are native to North America and are commonly known as sea oats or inland sea oats. They are popular ornamental grasses for their delicate appearance and low maintenance requirements.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Chasmanthium |
Appearance
Chasmanthium plants have long, slender, arching leaves that can grow up to 3 feet tall. The leaves are green in color and have an attractive texture. In summer, the plants produce clusters of delicate, oat-like seed heads that turn bronze or copper in the fall. These seed heads persist throughout the winter, adding interest to the garden. Chasmanthium latifolium is larger and more vigorous than Chasmanthium sessiliflorum.
Care Guide
Chasmanthium plants are easy to care for and require minimal maintenance. Here are some tips for caring for your Chasmanthium:
- Water: Chasmanthium plants prefer consistently moist soil, but can tolerate periods of drought once established.
- Fertilization: Chasmanthium plants do not require fertilization, but can benefit from a light application of a balanced fertilizer in early spring.
- Soil: Chasmanthium plants prefer well-draining soil that is rich in organic matter.
- Sunlight: Chasmanthium plants prefer partial shade to full sun.
- Hardiness Zones: Chasmanthium latifolium is hardy in zones 5-9, while Chasmanthium sessiliflorum is hardy in zones 6-9.
Common Pests & Diseases
Chasmanthium plants are generally not susceptible to pests or diseases. However, they may occasionally be affected by rust, which can cause yellowing of the leaves. Rust can be treated with a fungicide if necessary.
Habitat
Chasmanthium plants are native to North America and can be found growing in wetlands, along streams and rivers, and in other moist areas. They are well adapted to wet soils and can tolerate flooding and periods of drought.
Question and Answer
Q: Can Chasmanthium plants grow in containers?
A: Yes, Chasmanthium plants can be grown in containers as long as the containers are large enough to accommodate their root systems.
Q: Should I cut back Chasmanthium plants in the fall?
A: It is not necessary to cut back Chasmanthium plants in the fall, but you can if you prefer a tidier appearance. The seed heads can be left on the plants for winter interest.
Q: Can Chasmanthium plants be propagated by division?
A: Yes, Chasmanthium plants can be divided in early spring before new growth begins.
Q: Are Chasmanthium plants deer-resistant?
A: Yes, Chasmanthium plants are deer-resistant.
Related Plants
- Calamagrostis
- Eragrostis
- Juncus
- Muhlenbergia
References
- “Chasmanthium.” Missouri Botanical Garden. Accessed 19 Aug 2021. <https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e732>.
- “Chasmanthium.” NC State Extension. Accessed 19 Aug 2021. <https://plants.ces.ncsu.edu/plants/chasmanthium-sessiliflorum/>.
- “Chasmanthium.” University of Arkansas Division of Agriculture Research and Extension. Accessed 19 Aug 2021. <https://www.uaex.edu/yard-garden/resource-library/plant-database/grasses/chasmanthium.aspx>.
