Calamagrostis howellii

(c) Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger via iNaturalist

Species

Howell’s Reedgrass

Calamagrostis howellii

Howell's Reedgrass is a native perennial grass known for its dense clumps and ornamental feathery panicles.

Also known as: Howell's Reedgrass

Calamagrostis howellii, commonly known as Howell’s Reedgrass, is a perennial grass native to the western United States, particularly found in wet meadows and along stream banks in the Pacific Northwest. This species typically grows to a height of 2 to 4 feet, forming dense clumps that provide excellent erosion control and habitat for various wildlife. The leaves are narrow, linear, and can reach lengths of up to 12 inches, exhibiting a vibrant green color that turns golden in the fall. The inflorescence is a feathery panicle that appears in late spring to early summer, showcasing delicate spikelets that are wind-pollinated and produce small seeds that are dispersed by air currents.

Howell’s Reedgrass plays a crucial ecological role in its native habitats, contributing to soil stabilization and providing cover for small mammals and birds. It is also valued for its ornamental qualities in landscape design, particularly in rain gardens and naturalized areas. This species has adapted to thrive in moist conditions, making it an excellent choice for wetland restoration projects. Its ability to tolerate periodic flooding and its resilience to varying soil types further enhance its utility in ecological landscaping and conservation efforts.

Care Guide

🌱 Hardiness Zone
Zone 5–8
🪨 Soil
well-drained soil
☀️ Light
full sun to partial shade
💧 Water
moderate moisture
🌿 Fertilization
light annual fertilization

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Browse This Plant's Classification

Domain Eukaryota
Kingdom Plantae
Phylum Magnoliophyta
Class Liliopsida
Order Cyperales
Family Poaceae
Genus Calamagrostis
Species Calamagrostis howellii