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Description
Carex Onoei, also known as Ono’s sedge, is a perennial plant that belongs to the family Cyperaceae. It is native to Japan and Korea, and can be found growing in wetlands, meadows, and forests. This plant has narrow, grass-like leaves that grow up to 20 inches long and 0.1 inches wide. Its flowers are small and inconspicuous, and are borne on spikes that grow up to 6 inches long. Carex Onoei is an excellent plant for use in water features, rock gardens, and as a ground cover.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Cyperaceae |
| Genus | Carex |
Appearance
Carex Onoei has narrow, arching leaves that are dark green in color. The leaves grow up to 20 inches long and 0.1 inches wide. Its flowers are small and inconspicuous, and are borne on spikes that grow up to 6 inches long. The spikes are green in color and appear in late spring to early summer. Carex Onoei grows in clumps and can reach a height of up to 2 feet.
Care Guide
Carex Onoei is a low-maintenance plant that is easy to care for. Here are some tips on how to care for this plant:
- Water: Carex Onoei prefers moist soil, so it should be watered regularly. However, it should not be allowed to sit in standing water.
- Fertilization: This plant does not require regular fertilization, but a slow-release fertilizer can be applied in the spring if desired.
- Soil: Carex Onoei prefers well-draining soil that is high in organic matter. It can tolerate a range of soil types, including sandy, clay, and loamy soils.
- Sunlight: This plant prefers partial shade to full shade. It can tolerate some sun, but too much sun can cause its leaves to burn.
- Hardiness Zones: Carex Onoei is hardy in USDA zones 5-9.
Common Pests & Diseases
Carex Onoei is relatively pest-free, but it can be susceptible to fungal diseases such as rust and smut. These diseases can be prevented by providing good air circulation and avoiding overhead watering. In addition, care should be taken not to plant this species too closely together or in areas that are prone to excess moisture.
Habitat
Carex Onoei is native to Japan and Korea, where it can be found growing in wetlands, meadows, and forests. It prefers well-draining soil that is high in organic matter, and can tolerate a range of soil types. This plant is well-suited for use in water features, rock gardens, and as a ground cover.
Question and Answer
Q: Is Carex Onoei a good plant for use in water features?
A: Yes, Carex Onoei is an excellent plant for use in water features. It prefers moist soil and can tolerate being submerged in water.
Q: Does Carex Onoei require regular fertilization?
A: No, this plant does not require regular fertilization. A slow-release fertilizer can be applied in the spring if desired.
Q: Can Carex Onoei tolerate full sun?
A: This plant prefers partial shade to full shade. It can tolerate some sun, but too much sun can cause its leaves to burn.
Q: What hardiness zones is Carex Onoei suitable for?
A: Carex Onoei is hardy in USDA zones 5-9.
Related Plants
- Carex Buchananii
- Carex Comans
- Carex Flacca
- Carex Morrowii
References
- Missouri Botanical Garden: Carex Onoei
- RHS: Carex Onoei
- Plant Delights Nursery: Carex Onoei
