Woolgrass (Scirpus cyperinus)

Woolgrass

Also known as: Common woolsedge

The woolgrass is a grass-like aquatic perennial plant, native to wet meadows, marshes, and swamps of eastern North America. The plant got its name from its reddish, wooly spikelets, although the appearance of woolgrass varies depending on the habitat. The Native Americans used woolgrass to make bags and mats.

Scientific classification

Species

Woolgrass (Scirpus cyperinus)

Grasses, sedges and allies

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Perennial

Lifespan

Herb

Plant Type

Summer, Early fall

Bloom Time

91 cm to 1.8 m

Plant Height

60 cm to 1.2 m

Spread

Deciduous

Leaf type

10 - 35 ℃

Ideal Temperature

Moderate

Growth Rate

Images of Woolgrass

Attributes of Woolgrass

Growth Rate

Scirpus cyperinus, or 'Woolgrass', exhibits a moderate growth rate during Spring. This pace facilitates balanced development, allowing for adequate leaf production and steady height increase. The favourable Spring climate aligns perfectly with the plant's tendency for moderate growth, enabling it to gradually unfurl its lush greenery. It's essential to note that while its growth rate may differ in other seasons, during Spring, its moderate pace lends Woolgrass a vibrant and hardy character.

Distribution of Woolgrass

Distribution Map

Woolgrass is a plant with a native range primarily in North America. It has since been introduced to several regions across Europe. Woolgrass is also known to be cultivated, which has likely contributed to its presence beyond its original habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Wet meadows, swamps

Hemisphere Trend Curve

Northern

Sorthern

Quickly Identify Woolgrass

Erect growth up to 5 feet (1.5 meters) with fluffy, brownish spikelet clusters

Triangular green stems with narrow, grass-like leaves reaching 12 inches (30 cm) long

Woolly flower clusters in loose, branched panicles, lacking distinct petals or scent

Small achene fruits in globular, rough inflorescence, blending with marshy surroundings

Bright green leaves up to 12 inches (30 cm) long, transitioning to yellowish-brown in fall

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Care Guide for Woolgrass

Every week

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Originating from wetlands, woolgrass thrives in consistently moist soil, showing high water availability preference. It tolerates temporary flooding and should be watered weekly. With a robust root system, woolgrass efficiently uptakes water, supporting lush foliage throughout the growing season.

Fertilize: For woolgrass, apply balanced nutrition fertilizer monthly during the growing season, from early spring to summer. Use light doses to prevent over-fertilization and avoid application in dormant seasons. Water post-fertilization to enhance nutrient absorption, ensuring woolgrass maintains health and vigor.

Pruning: Woolgrass features tall, feathery seed heads and lush green stems. Prune in early to late spring, cutting dead stalks to ground level for healthy growth. Clean tools prevent disease. Proper pruning enhances aesthetics, improves air circulation, and reduces pest issues, promoting a robust plant.

Propagation: Woolgrass prefers moist environments and can be propagated by dividing its clumps. To do this, separate the root ball ensuring each section has roots and a growing point. Replant in equally moist soil to ensure establishment, preserving genetic integrity and promoting rapid growth.

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