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Description
Achnatherum Calamagrostis, also known as Needlegrass, is a perennial bunchgrass that belongs to the Poaceae family. It is native to North America and is commonly found in the western United States, from California to Montana. It can grow up to 3 feet tall and has a deep root system that helps it survive in arid conditions. Its leaves are narrow and sharp, resembling needles, and its inflorescence is a dense spike-like panicle that can range from green to golden brown in color.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Liliopsida |
| Order | Poales |
| Family | Poaceae |
| Genus | Achnatherum |
Appearance
Achnatherum Calamagrostis is a visually striking plant that can add texture and interest to any landscape. Its leaves are long and narrow, measuring up to 10 inches in length, and are stiff and sharp to the touch. The plant’s inflorescence consists of dense spike-like panicles that are typically 2 to 6 inches in length and range in color from green to golden brown. When in bloom, the plant can be quite showy and attractive to pollinators like bees and butterflies.
Care Guide
Achnatherum Calamagrostis is a low-maintenance plant that is relatively easy to care for. Here are some key factors to keep in mind:
Water
Achnatherum Calamagrostis is drought-tolerant and can survive on very little water once established. However, it is important to water the plant regularly during the first growing season to help it establish a strong root system. After that, the plant should only need occasional watering during periods of extended drought.
Fertilization
Because Achnatherum Calamagrostis is a native plant, it typically does not require fertilization. However, if you want to give your plant a little extra boost, you can apply a slow-release fertilizer in the early spring, before new growth begins.
Soil
Achnatherum Calamagrostis prefers well-draining soil that is slightly acidic. It can tolerate a wide range of soil types, including sandy, loamy, and clay soils.
Sunlight
Achnatherum Calamagrostis thrives in full sun but can also tolerate partial shade. If you are planting it in a hot, arid climate, it may benefit from some afternoon shade to prevent scorching.
Hardiness Zones
Achnatherum Calamagrostis is hardy in USDA zones 4 through 9.
Common Pests & Diseases
Achnatherum Calamagrostis is relatively pest and disease-resistant. However, it can be susceptible to fungal diseases like rust and leaf spot, especially in humid environments. To prevent these diseases, make sure to plant your Achnatherum Calamagrostis in well-draining soil and avoid overhead watering. If you do notice signs of disease, you can treat the plant with a fungicide.
Habitat
Achnatherum Calamagrostis is native to North America and can be found in a wide range of habitats, including prairies, meadows, and open woodlands. It is particularly well-suited to arid and semi-arid climates and can tolerate hot, dry conditions with ease.
Question and Answer
Q: Can Achnatherum Calamagrostis be grown in containers?
A: While Achnatherum Calamagrostis can technically be grown in containers, it is not an ideal choice for this purpose. The plant has a deep root system and prefers to have plenty of room to spread out. If you do choose to grow it in a container, be sure to choose a large pot and use a well-draining soil mix.
Q: Is Achnatherum Calamagrostis deer-resistant?
A: Yes, Achnatherum Calamagrostis is generally considered to be deer-resistant. However, if deer are particularly hungry or if food is scarce, they may still nibble on the plant.
Q: How often should I prune my Achnatherum Calamagrostis?
A: Achnatherum Calamagrostis does not typically require pruning. However, if the plant begins to look untidy or overgrown, you can trim it back in the early spring before new growth begins.
Q: Can Achnatherum Calamagrostis be planted near other plants?
A: Yes, Achnatherum Calamagrostis can be planted near other plants as long as they have similar growing requirements. It pairs well with other drought-tolerant plants like lavender, yarrow, and Russian sage.
Related Plants
- Achnatherum hymenoides
- Achnatherum nelsonii
- Achnatherum pinetorum
- Achnatherum robustum
References
- https://plants.usda.gov/core/profile?symbol=ACCA7
- https://www.fs.fed.us/wildflowers/plant-of-the-week/achnatherum_calamagrostis.shtml
- https://www.wildflower.org/plants/result.php?id_plant=ACCA7
