Juncus effusus ‘Spiralis’
Overview
Uses: Water gardens, pond edges, rain gardens, containers, indoor accent plantings
Benefits: Distinctive spiraled stems, strong architectural texture, adaptable to wet soils and shallow water, deer resistant
USDA Hardiness Zones: 5–11
Sun: Full Sun to Partial Shade
Life Cycle: Hardy Perennial
Growth Habit: Clumping, Upright — twisted cylindrical stems from base
Bloom Color: Yellow-Green
Foliage Color: Dark Green
Mature Height: 12–18 inches
Mature Width: 12–18 inches
Bloom Season: Summer
Growth Rate: Moderate
Summary
Corkscrew Rush brings bold architectural texture to gardens and containers with its tightly spiraled, dark green stems. Its sculptural form makes it an eye-catching accent whether planted along pond edges or featured in patio planters.
Though often mistaken for an ornamental grass, this plant is a rush with smooth, cylindrical stems that twist into dramatic curls. Small yellow-green flowers appear in summer, though the foliage remains the primary ornamental feature.
It thrives in consistently moist soil and performs exceptionally well in rain gardens, boggy areas, or shallow standing water. Its distinctive form also makes it popular for indoor containers and dried floral arrangements.
Care
Corkscrew Rush Care
Plant in moist, fertile soil with reliable access to water. This variety performs best in consistently damp conditions and tolerates shallow water around its base.
Provide full sun for strongest growth, though partial shade is acceptable in warmer regions.
Apply a balanced slow release fertilizer in spring to support steady seasonal growth.
Trim damaged or winter-browned stems in late winter or early spring before new growth begins. Plants may be divided in spring to maintain vigor and manage spread.
Container Growing
Corkscrew Rush performs well in containers provided moisture is maintained consistently. Containers should not be allowed to dry out completely.
Use a moisture-retentive potting mix and monitor watering closely during warm weather, as container-grown plants dry out more quickly.
Plants hardy in the ground may require winter protection when grown in containers in colder zones.
Size
What Size is the Corkscrew Rush for Sale Online?
Plants ship in a greenhouse-grade grow pot and are actively growing at the time of shipment. Each plant is well-rooted and appropriately sized for its container. If you have specific sizing questions, please contact us for additional details.
How Large Does Corkscrew Rush Grow?
Mature plants typically reach 12–18 inches tall and spread 12–18 inches wide, forming dense clumps of twisted stems.
Additional Information
What are some common names for this plant?
This plant is commonly known as Corkscrew Rush and is sometimes referred to as Unicorn Rush.
Is Corkscrew Rush a true grass?
No. Although it resembles ornamental grasses, it is technically a rush with smooth, cylindrical stems rather than flat grass blades.
Where does Corkscrew Rush grow best?
It performs especially well in wet environments such as pond margins, rain gardens, and shallow water features. It also works beautifully in decorative containers and alongside plants in our Ornamental Grasses and Patio Plants collections.
Is Corkscrew Rush deer resistant?
Yes. The texture and structure of the stems make it generally unappealing to deer.
