White beak-sedge
Rhynchospora alba · Cyperaceae
The gardener's calendar
Ideal time to plant white beak-sedge: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Cyperaceae
- Plant type
- Herbaceous perennial grass
- Foliage
- Deciduous, fine and narrow
- Flowering
- July to September
- Mature size
- 12 to 24 inches in height
- Hardiness
- Low hardiness (protect in cold climates)
- Origin
- Peatlands and temperate wetlands of Europe and Asia
- Soil type
- Acidic, peaty, moist and poorly drained soil
Care
Watering
Keep the substrate constantly moist, even slightly waterlogged. This plant loves marshy environments and hates drying out. In pots or in the garden, regular watering is essential, especially during the summer growing season.
Light exposure
Prefer full sun to partial shade. A minimum of 4 to 6 hours of direct light allows for good growth. It also tolerates partial shade if humidity remains high.
Soil and substrate
Require acidic, peaty soil rich in organic matter. If growing it in a pot, use a mix of blonde peat and coarse sand. Very limited drainage or a slight stagnation zone works perfectly.
Pruning and cleaning
Remove any dried foliage in spring before new growth begins. No structural pruning is necessary. Simply cut off dead debris to maintain a neat appearance.
Fertilizing
Apply little to no fertilizer: peaty soils are naturally poor and the plant thrives in them. A very modest application of balanced fertilizer in spring is enough if growth seems weak.
Diseases and pests
Rarely affected by pests in natural conditions. Watch for soil drying out, the main enemy that can cause its decline. In confined humid environments, slight rot may occur; improve air circulation.
Did you know?
Rhynchospora alba is among the ecological indicator species of Sphagnum peatlands. Its name 'rhynchospora' means 'beak bearer' in Greek, alluding to the small pointed structures on its flowers. In the past, this species was harvested for its supposed properties in phytotherapy, although its medicinal use is not well documented.
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
- Blue sedgeCarex panicea
- Spring sedgeCarex caryophyllea
- Pendulous sedgeCarex pendula
- Bird's-foot SedgeCarex ornithopoda
- Gray's sedgeCarex grayi
- Strict sedgeCarex stricta
Tips generated and checked by Viridia — adapt them to your local climate.