Buchanan's sedge (Carex buchananii)

Buchanan's sedge

Also known as: Silver-spiked sedge

Buchanan's sedge is known for its striking reddish-brown, narrow, leathery foliage that forms an upright, clumping habit. It reaches up to 80 cm in height and thrives in sunny to partially shaded spots with moist, well-drained soil. Resilient to various climates, it adds a year-round bronze texture to gardens, blending particularly well with grasses and perennials in naturalistic landscapes.

Scientific classification

Species

Buchanan's sedge (Carex buchananii)

Grasses, sedges and allies

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Perennial

Lifespan

Herb

Plant Type

Brown, Red, Orange

Leaf Color

Brown, Green

Flower Color

Brown, Orange

Stem Color

Evergreen

Leaf type

10 - 35 ℃

Ideal Temperature

Summer

Growth Season

Images of Buchanan's sedge

Distribution of Buchanan's sedge

Distribution Map

Buchanan's sedge is indigenous to the islands of Oceania. On top of its native habitat, buchanan's sedge has been introduced to regions in the western Eurasian temperate zones, where it is now naturalized. This species is also widely cultivated beyond its primal range for ornamental purposes.

Native

Cultivated

Invasive

Introduced

No species reported

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Culture

Interesting Facts

In 1754, Lin Nai founded the true sedge genus. True sedge is also one of the main components of the flora in China. It is the dominant grass species in the lowest forest layer in many areas. In some forests, the lower vegetation is mostly true sedge.

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Quickly Identify Buchanan's sedge

Upright, airy clump reaching 1-2 feet (30-60 cm) in height and width.

Leaves with sharp edges and arching shape, curling at tips with copper-red coloration.

Triangular stem, smooth and rigid, up to 2 feet (60 cm) tall, exhibiting reddish-brown coloring.

Insignificant brown flowers in spikelets, 0.1 inches (2-3 mm) in diameter.

Distinctive copper-red to bronze narrow leaves, 18-24 inches (45-60 cm) long and less than 1/2 inch (1.27 cm) wide.

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Care Guide for Buchanan's sedge

Every week

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Buchanan's sedge thrives in moderate moisture levels, requiring weekly watering without becoming waterlogged. As an evergreen, it retains foliage year-round and needs careful hydration during dry spells to keep its vibrant green blades healthy.

Fertilize: For buchanan's sedge, use a balanced fertilizer sparingly in spring and midsummer, with diluted solutions applied up to twice a year. This promotes vigorous growth while avoiding harm. Adjust fertilization seasonally, reducing it in winter. Use liquid fertilizers for even distribution and water beforehand to prevent root burn.

Pruning: Buchanan's sedge features fine, bronze foliage and requires pruning in early to late spring for optimal growth. Remove dead leaves and thin crowded areas to improve air circulation. Regular pruning fosters denser foliage and disease prevention, using clean, sharp tools to minimize damage.

Propagation: Indigenous to New Zealand, buchanan's sedge is a perennial sedge with reddish-brown foliage, thriving in diverse conditions. Propagation through division involves separating mature clumps with strong roots and shoots, ensuring successful establishment. This efficient method is favored by gardeners for expanding buchanan's sedge in their landscapes.

Repotting: Buchanan's sedge thrives when repotted every 2-3 years in spring. Use a slightly larger container for root expansion, and ensure well-draining soil with consistent moisture post-repotting. New growth signals successful acclimation to the refreshed environment.

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