Description
Calamagrostis is a genus of perennial grasses commonly known as reed grass. They are widely used in landscaping and horticulture for their ornamental value, hardiness, and adaptability to different growing conditions. Here are some horticultural notes on the genus Calamagrostis:
Soil and Light Requirements: Calamagrostis species prefer moist, well-drained soils with a pH between 5.0 and 7.5. They tolerate both full sun and partial shade but prefer cooler conditions.
Watering: Reed grasses require regular watering, especially during their first growing season. Once established, they can tolerate some drought but perform best with consistent moisture.
Fertilization: Calamagrostis grasses do not require heavy fertilization. A light application of balanced fertilizer in spring and summer will suffice.
Pruning: Calamagrostis species do not require pruning, but they can benefit from cutting back the foliage in late winter or early spring before new growth emerges.
Propagation: These grasses can be propagated by division in early spring or early fall.
Landscaping uses: Calamagrostis grasses are used in a variety of landscaping applications, including borders, screens, mass plantings, and erosion control.
Common species: Some popular Calamagrostis species include Calamagrostis acutiflora (feather reed grass), Calamagrostis x acutiflora ‘Karl Foerster’ (Karl Foerster feather reed grass), and Calamagrostis brachytricha (Korean feather reed grass).