Northern green rush
Juncus alpinoarticulatus · Juncaceae
The gardener's calendar
Ideal time to plant northern green rush: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Juncaceae
- Form
- Herbaceous perennial
- Foliage
- Deciduous to semi-evergreen
- Flowering
- June to August
- Adult size
- 20 to 40 cm in height
- Hardiness
- Very hardy (down to -15°C)
- Origin
- European mountains
- Soil type
- Moist to marshy, peaty
Care
Watering
Alpine rush appreciates constantly moist or even water-saturated soils. Keep the substrate wet, especially during the growing season. In pots, water regularly and feel free to leave a saucer of water to maintain humidity. In marshy terrain or by water edges, watering becomes unnecessary.
Light and exposure
This plant prefers full sun to partial shade for proper development. 4 to 6 hours of sunlight per day is generally sufficient. It tolerates semi-shaded locations well, particularly in mountains where it grows naturally.
Soil and substrate
Alpine rush requires moist, peaty or organic-rich soil. A slightly acidic to neutral substrate is ideal. For pot cultivation, compose a mixture based on peat soil or blonde peat mixed with sand to improve drainage while maintaining moisture.
Nutritional needs
This alpine species is undemanding and requires little fertilizer. A modest application of well-decomposed compost in spring is more than sufficient. Avoid overly concentrated chemical fertilizers that could disturb the balance of moist soils.
Pruning and cutting
Alpine rush does not require regular pruning. Simply remove dry or damaged stems in early spring. You can lightly cut back the clump in late winter to encourage more compact growth the following spring.
Pests and diseases
Very hardy and naturally vigorous, alpine rush is rarely affected by serious diseases. Avoid root asphyxiation from excessive drainage that would alter its natural habitat. Prolonged excessive dryness can weaken the plant.
Did you know?
Alpine rush is an excellent bio-indicator of humidity: its spontaneous presence in mountains almost always signals the proximity of a spring or water seepage zone. Alpine rushes have long served as raw material for rustic weaving and the making of lightweight furniture in mountain regions.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Snowy WoodrushLuzula nivea
- Great woodrushLuzula sylvatica
- Sharp-flowered rushJuncus articulatus
- Wood rushLuzula multiflora
- Compact rushJuncus conglomeratus
- Juncus inflexusJuncus inflexus
Tips generated and checked by Viridia — adapt them to your local climate.