Calamagrostis brachytricha: The Majestic Korean Feather Reed Grass
Calamagrostis brachytricha, commonly known as Diamond Grass, Foxtail Grass, or Korean Feather Reed Grass, is a stunning ornamental grass belonging to the Poaceae family. Renowned for its graceful, arching plumes that shimmer in the sunlight, this grass is a favorite among gardeners for its aesthetic appeal and versatility in various landscape settings.
Botanical Background
Scientific Name: Calamagrostis brachytricha
Common Names: Diamond Grass, Foxtail Grass, Korean Feather Reed Grass, Reed Grass
Family: Poaceae
Genus: Calamagrostis
Species: brachytricha
Origin: Central and Eastern Asia, naturally occurring in moist, deciduous woodlands.
Description
Calamagrostis brachytricha is a slow-spreading, clump-forming perennial grass that creates striking vertical lines in the garden. This ornamental grass reaches heights of 3 to 4 feet (90-120 cm) and spreads about 2 to 3 feet (60-90 cm) wide. It forms a dense mound of glossy, green leaves that turn a beautiful yellow in the fall.
Foliage: The leaves are narrow (1/4 to 5/8 inch wide), stiff, and glossy green, providing a lush backdrop to the flower plumes. In the fall, the foliage turns a golden-yellow, adding seasonal interest.
Flowers: From late summer to early winter, the grass is topped with large, feathery plumes that start as pinkish-purple and mature to a light tan as the seeds ripen. These plumes, rising above the foliage, create a dramatic and elegant effect, especially when backlit by the sun.
Growth Habit: Upright and arching, this grass maintains a graceful form throughout the growing season. It is also known for its ability to tolerate shade, a rare trait among large flowering grasses.
Cultivation and Care of Calamagrostis brachytricha:
Light Requirements: Calamagrostis brachytricha thrives in full sun to partial shade. While it performs best in full sun with more profuse flowering, it can tolerate and bloom in light shade, making it suitable for woodland gardens.
Soil Requirements: This grass is adaptable to a range of soil types, from sandy to clay soils, provided they are kept consistently moist. It prefers average to fertile soils and performs well in heavy clay soils.
Watering: Regular watering is essential, especially during dry periods. The soil should be kept moist but not waterlogged.
Maintenance: Calamagrostis brachytricha requires minimal maintenance. Cut back the clumps to the ground in late winter or early spring before new growth appears to ensure vigorous new growth. Removing the dead foliage helps maintain the plant’s neat appearance.
Pests and Diseases: This grass is generally pest and disease-free. It is also resistant to deer and rabbits, making it an excellent choice for areas with wildlife browsing issues.
Propagation of Calamagrostis brachytricha:
Division: The most effective method of propagation is by division. Divide the clumps in spring, ensuring each division has a healthy root system. Replant immediately to establish new plants.
Self-Seeding: In moist, shady areas, Calamagrostis brachytricha may self-seed to a minor extent. These seedlings can be easily managed or moved to new locations in the garden.
Landscaping Uses
Calamagrostis brachytricha is highly ornamental and versatile, suitable for various landscape applications:
- Specimen Plant: Its striking plumes make it an excellent focal point in borders or large garden beds.
- Mass Planting: This creates a dramatic effect when planted en masse, especially in naturalistic or prairie-style gardens.
- Moist Spots: Ideal for planting near ponds, streams, or other moist areas where other grasses might struggle.
- Woodland Gardens: Its shade tolerance makes it perfect for woodland settings where it can complement shade-loving perennials and groundcovers.
- Cut Flowers: The plumes are excellent for fresh or dried floral arrangements, maintaining their feathery appearance even when dried.
Awards and Recognition
They have recognized Calamagrostis brachytricha for its outstanding qualities, It won the prestigious Award of Garden Merit from the Royal Horticultural Society in 2006. This award highlights its exceptional performance, reliability, and beauty in the garden.
Summary
Calamagrostis brachytricha, or Korean Feather Reed Grass, is a magnificent ornamental grass that offers year-round interest with its graceful, arching foliage and striking plumes. Its adaptability to a range of growing conditions, including shade and heavy soils, makes it a versatile choice for various garden settings. With minimal maintenance requirements and resistance to pests, it is an excellent addition to any landscape, providing beauty and elegance with its feathery, glowing plumes.
