Spiny rush - Juncus acutus (Taxonomy, Characteristics, Distribution, Images)

Spiny rush

Also known as: Southwestern spiny rush, Sharp-pointed rush

Spiny rush (Juncus acutus) is a versatile plant, growing around the world in salt marshes and desert dunes. Its upright green or brown stems end in a sharp point, which can harm humans and animals. Although favored by some landscapers, it is invasive. It is used for basket weaving by indigenous groups of California.

Scientific classification

Species

Spiny rush (Juncus acutus)

Grasses, sedges and allies

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Perennial

Lifespan

Herb

Plant Type

1 m

Spread

Brown, Yellow, Pink

Flower Color

Deciduous

Leaf type

15 - 35 ℃

Ideal Temperature

Images of Spiny rush

Distribution of Spiny rush

Distribution Map

Spiny rush is a plant naturally found across regions with Mediterranean climates and is also native to temperate areas of the Northern Hemisphere. Its presence extends to dry and coastal habitats. Beyond its indigenous range, spiny rush has spread to regions in the Southern Hemisphere, notably introduced and becoming part of ecosystems on continents like Australia and New Zealand.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Moist saline habitats and alkaline seeps

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Spiny rush

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Water: Spiny rush thrives in consistently moist environments and tolerates brief flooding. It requires weekly watering to maintain hydration and benefits from natural rainfall in outdoor settings. Proper drainage is essential in containers to prevent waterlogging during heavy rains.

Fertilize: Fertilizing spiny rush is crucial for its growth. Use a balanced NPK fertilizer quarterly, adjusting based on size and soil. Avoid over-fertilizing to protect roots. Fertilize more in Spring and Summer, less in Fall and Winter. Water thoroughly after application and follow safety instructions.

Pruning: Spiny rush features spiky, tufted growth. Pruning should occur in early to late spring to foster recovery and enhance growth, improving airflow and reducing pests. Use clean, sharp tools for effective pruning, ensuring the health and appearance of the plant.

Propagation: This perennial species, spiny rush, with sharp leaves, thrives in wetlands. For successful cultivation, divide established clumps during active growth, ensuring each section has rhizome and foliage. Replant quickly into moist soil to stimulate healthy root development and plant establishment.

Repotting: Repot spiny rush in late spring every 2-3 years to align with its growth phase. Use a spacious, well-draining container to support its roots. After repotting, keep the plant adequately moist while shielding it from direct sunlight to promote healthy growth.

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Images of Spiny rush

Distribution of Spiny rush

Care Guide for Spiny rush

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