Juncus effusus 'Spiralis' (Corkscrew Rush)

Juncus effusus (Corkscrew Rush) 'Spiralis' green plant stems tangled in small black plastic nursery pots.
Juncus effusus (Corkscrew Rush) 'Spiralis' stems with distinct twisting green stalks growing in multiple pots.

Botanical name: Juncus effusus

Common names: Corkscrew Rush, Spiral Rush, Soft Rush

Cultivar: Spiralis

Family: Juncaceae

USDA Plant Hardiness Map

USDA Zone: 4-9

Cold tolerance: -30°F

Small plant 2-5 ftPlant form: Small
Plant mature sizeMature height: 2-5 ft
Full sunSemi-shadeSun exposure: Full sun or bright light indoor; semi-shade
Subtropical plant. Mature plant cold hardy at least to 30s F for a short timeCold tolerance: Tolerates light freezing to about 30°F for short periods (mature plants). Young plants must be protected.
Watering: Regular. Let topsoil dry slightlyKeep soil wet: Bog or aquatic plantWatering: Regular; bog or aquatic
Suitable forSuitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing
Ornamental foliageFoliage color: Ornamental foliage
Flood tolerant plantFlood tolerance: High

Juncus effusus Spiralis (Corkscrew Rush) is a small plant that grows between 2 to 5 feet in height and is suitable for planting in USDA zones 2-9. This ornamental foliage plant thrives best in full sun to semi-shade and requires regular waterings. It is suitable for any bog or aquatic environment and is flood tolerant.

When planting this small plant in pots, it is important to note that it does best in warmer climates. If planted in colder regions, you must ensure that the pot is well-drained, and never allowed to freeze. Monitor the soil, and if necessary supplement with fertilizers throughout the growing season.

This hardy plant is easily cultivated and will add a unique and exotic feel to any outdoor space. With its attractive corkscrew-like stems, it is a perfect feature plant that adds texture and visual interest. With proper planting, fertilizing and pruning, Corkscrew Rush is a low-maintenance and hassle-free addition to any garden.

In some sources, the plant is also referred to as Juncus effusus var. decipiens.


Juncus effusus (Corkscrew Rush) 'Spiralis' green plant with tight spiral stems close up
Juncus effusus (Corkscrew Rush) 'Spiralis' with deep green stems growing in a dense mass
Juncus effusus (Corkscrew Rush) 'Spiralis' green plant close up with many twisted stems.
Juncus effusus (Corkscrew Rush) 'Spiralis' with numerous curled green stems growing within small nursery pots.
Juncus effusus 'Spiralis' green plant with twisted stems in white pot
Juncus effusus 'Spiralis' with curly green stems sitting in a white container
Juncus effusus (Corkscrew Rush) 'Spiralis' green plant with tight curls in a close up view.
Juncus effusus (Corkscrew Rush) 'Spiralis' stems twist into curls, growing dense within a small dark pot.


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