Common clubrush
Schoenoplectus lacustris · Cyperaceae
The gardener's calendar
Ideal time to plant common clubrush: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Scientific name
- Schoenoplectus lacustris
- Family
- Cyperaceae
- Form
- Perennial grass-like plant
- Mature size
- 1 to 2.5 m in height
- Foliage
- Deciduous, green stems
- Flowering
- July to September, reddish-brown spikelets
- Hardiness
- Very hardy down to -20 °C
- Origin
- Eurasia, temperate and boreal regions
- Natural habitat
- Wetland areas, banks of water bodies
Care
Watering
The lake bulrush is a marsh plant: it must be immersed or grown in constantly moist soil. Plant it at the edge of a water feature, in shallow water (15 to 60 cm), or in marshy soil. Avoid any drying out during the growing season.
Light exposure
Position your lake bulrush in full sun for optimal growth and sturdy stems. Partial shade is tolerated, but vigour may decrease. Full sun promotes rapid colonization of wetland areas.
Soil and planting
This bulrush thrives in muddy, clay-rich or organic-rich soil that is always saturated with water. In an aquatic garden, use a silty-clay substrate mixed with potting soil. Plant in spring once frost risk has passed.
Pruning and maintenance
Cut back dry and dying stems in late winter, before new growth resumes in spring. This encourages new shoots to form and maintains visual appeal. Perform regular cleaning to limit the build-up of dead plant material.
Fertilizing
In naturally rich and moist soil, fertilizer is generally not needed. If growth seems to slow, a moderate application of balanced fertilizer in spring can support vegetation. Use restraint to avoid eutrophication of the aquatic environment.
Diseases and pests
The lake bulrush is a robust plant, rarely affected by diseases or pests. In poorly drained or stagnant conditions, rhizome rot may occur during very wet winters. Ensure good water circulation to prevent problems.
Did you know?
Historically, the stems of lake bulrush were woven to make chair seats — hence its nickname 'chairmakers' rush'. Although not a true rush, its reliability and flexibility made it a preferred material for basketry and rustic furniture in Europe, particularly in Italy and Provence. Today, it remains sought-after in heritage restoration and artisanal decoration.
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
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- Gray's sedgeCarex grayi
- Strict sedgeCarex stricta
Tips generated and checked by Viridia — adapt them to your local climate.