Calamagrostis nutkaensis

(c) grassgirl, some rights reserved (CC BY-NC), uploaded by grassgirl via iNaturalist

Species

Pacific Reedgrass

Calamagrostis nutkaensis

Pacific Reedgrass is a tall, clump-forming grass native to the Pacific Northwest, valued for its ecological role and ornamental qualities.

Also known as: Pacific Reedgrass

Calamagrostis nutkaensis, commonly known as Pacific Reedgrass, is a perennial grass native to the coastal regions of the Pacific Northwest, including parts of Alaska, British Columbia, and Washington. This species typically grows in clumps, reaching heights of 3 to 6 feet, and features a dense, upright growth habit that provides excellent erosion control along shorelines and riverbanks. The leaves are narrow, linear, and can be up to 1/2 inch wide, exhibiting a vibrant green color that turns golden in the fall, while the flowering stems produce feathery, plume-like inflorescences that can be quite striking, adding aesthetic value to natural landscapes and gardens alike. The seeds are small and wind-dispersed, allowing for effective colonization of disturbed areas and contributing to the grass’s role in stabilizing soil and providing habitat for various wildlife species.

Ecologically, Pacific Reedgrass plays a vital role in wetland and riparian ecosystems, serving as a food source for birds and small mammals while also providing cover for various aquatic and terrestrial organisms. Its ability to thrive in a range of soil types, from sandy to clayey, makes it a versatile choice for restoration projects. Additionally, this grass is well-adapted to tolerate periodic flooding and can withstand saline conditions, making it suitable for coastal environments. Human uses of Calamagrostis nutkaensis include its application in landscaping for erosion control and as a decorative element in gardens, particularly in naturalistic settings. Its resilience and adaptability further enhance its value in ecological restoration efforts.

Care Guide

🌱 Hardiness Zone
Zone 5–9
🪨 Soil
well-drained, sandy loam
☀️ Light
full sun to partial shade
💧 Water
moderate to high
🌿 Fertilization
light annual application

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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 nutkaensis