Cotton grass - Eriophorum angustifolium (Care, Characteristics, Distribution, Images)

Cotton grass

Also known as: Common cottonsedge, Bog-cotton, Narrowleaf cotton-grass

Cotton grass (Eriophorum angustifolium) is a perennial that will grow from 20 to 102 cm tall. It blooms from spring to summer with small brown and green flowers. Flowers develop white seed heads that look like tufts of cotton. Has been used in Europe as a cotton substitute for making paper and other textiles. Commonly found growing in bogs and wetlands.

Scientific classification

Species

Cotton grass (Eriophorum angustifolium)

Grasses, sedges and allies

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Perennial

Lifespan

Herb

Plant Type

Green

Leaf Color

2.5 cm to 8 cm

Flower Size

Brown, Copper, White

Fruit Color

White, Brown

Flower Color

Green

Stem Color

Evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Images of Cotton grass

Attributes of Cotton grass

Growth Rate

With moderate growth rate, cotton grass flourishes during summer, balancing energy distribution between vegetation and reproduction. This speed allows optimal seed head production, resulting in its cotton-like appearance, without greatly sacrificing height gain or foliar expansion. Varied growth in other seasons implies adaptation for thriving in optimum summer conditions.

Quickly Identify Cotton grass

Distinct cotton-tufted flower spikes

Fluffy white seed heads resembling tufts of wool

Triangular stems reaching up to 3 feet (90 cm) tall

Flat, triangular cross-section leaves up to 16 inches (40 cm) long

Small, brown 3-sided seeds less than 1/10th inch (2.5 mm) long

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Care Guide for Cotton grass

Every week

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Cotton grass thrives in wetland habitats, preferring consistent moisture and tolerating brief water saturation. Watering weekly is essential for optimal growth. Commonly grown outdoors, cotton grass is ideal for rain gardens and areas prone to seasonal flooding due to its adaptability to varying water levels.

Fertilize: For optimal growth, cotton grass requires balanced nutrition fertilizer rich in nitrogen, phosphorous, and potassium. Apply diluted monthly during the growing season, reducing in winter. Avoid over-fertilization to prevent root burn, adjusting quantities as cotton grass matures. Use gloves and follow package instructions for safe application.

Pruning: Cotton grass is a perennial with distinctive fluffy seed heads. Prune in early to late spring for healthy growth and to prevent overcrowding. Remove damaged stems at ground level to enhance air circulation and minimize disease risk. Follow horticultural guidelines for effective pruning.

Propagation: For successful propagation of cotton grass, use division in early spring. Separate clumps with roots intact, and plant divisions in moisture-retentive soil. Maintain consistent moisture to encourage rooting, ideally mimicking cotton grass's natural boggy habitat for better establishment.

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