Juncus spiralis, commonly known as Corkscrew Rush, is a unique architectural plant admired for its twisting, spiralled green stems.

A cultivar of Juncus effusus, this variety forms upright clumps of tightly curled, cylindrical stems that create a bold sculptural effect. Unlike most houseplants, it thrives in consistently moist conditions and can even tolerate sitting in shallow water.

Modern, minimal and textural, Corkscrew Rush is ideal for bright kitchens, bathrooms or contemporary living spaces.

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Key Features

• 🌿 Twisting, corkscrew-like green stems

• 🌿 Architectural and sculptural form

• 🌿 Thrives in consistently moist soil

• 🌿 Unusual texture for modern interiors

• 🌿 Suitable for indoor or patio use

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Care Guide

Light

Bright light is essential.

• Thrives in bright, indirect light

• Can tolerate some direct sun

• Avoid very low light

The brighter the light, the stronger and more upright the spirals remain.

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Watering

Unlike most houseplants, Juncus prefers constant moisture.

• Keep soil consistently moist

• Can tolerate sitting in a shallow saucer of water

• Do not allow soil to dry out

Drying out will cause stems to brown quickly.

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Humidity

Happy in average to high humidity.

• Performs well in bathrooms or kitchens

• Tolerates typical UK indoor humidity

It is less fussy than tropical foliage plants.

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Temperature

• Ideal: 15–24°C

• Tolerates slightly cooler conditions

• Protect from frost

It can also be placed outdoors during warmer months.

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Soil & Potting Mix

Use a moisture-retentive mix:

• Peat-free houseplant compost

• Avoid very free-draining succulent mixes

It prefers heavier, moisture-holding soil compared to tropical aroids.

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Feeding

Feed during spring and summer:

• Balanced liquid fertiliser every 4 weeks

• Reduce feeding in autumn and winter

Overfeeding is rarely necessary.

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Growth Habit

• Clump-forming

• Typically grows 30–45cm tall

• New spirals emerge from the centre

Trim brown stems at the base to keep it tidy.

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Propagation

Best propagated by division:

1. Remove from pot

2. Divide the root ball

3. Repot sections separately

This is easiest in spring.

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Common Problems

Brown stems

• Soil dried out

• Low light

Yellowing

• Poor drainage (rare but possible if soil is compacted)

Maintaining consistent moisture is key.

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Styling Ideas

• Ideal for modern, minimalist interiors

• Works beautifully in white or black pots

• Perfect for bathrooms or kitchens

• Adds texture alongside leafy foliage plants

Its spiralled stems create movement and structure in plant displays.

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Toxicity

Juncus spiralis is generally considered non-toxic to pets, but it is best kept out of reach to prevent chewing damage.