Carex aquatilis
Carex aquatilis · Cyperaceae
The gardener's calendar
Ideal time to plant carex aquatilis: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous to semi-evergreen depending on climate
- Flowering
- Spring to early summer (May-June)
- Mature size
- 30 to 60 cm in height
- Growth
- Moderate to fast
- Hardiness
- Very hardy (down to -20°C)
- Origin
- Temperate wetland zones of the northern hemisphere
- Soil type
- Wet to moist soils, peaty or clayey
Care
Watering
Aquatic sedge appreciates constantly moist to wet soil. Water regularly to maintain moisture, especially during the growing season. This plant thrives at pond edges, ditches, or intermittently flooded areas. Avoid prolonged dry spells.
Light exposure
Install this sedge in full sun or partial shade for optimal growth. It tolerates slightly shaded areas well but develops a more compact form in sunlight. In very hot climates, partial shade exposure can be beneficial.
Soil and substrate
Choose soil rich in organic matter, acidic to neutral, and moist or even waterlogged. Peaty, clayey, or alluvial soils are ideal. Improving the soil with compost or peat promotes plant establishment.
Pruning and maintenance
Perform spring cleanup by cutting dried or damaged foliage. This plant requires no strict pruning. Remove faded flower spikes if you wish to encourage full and regular growth.
Fertilizing
Apply balanced fertilizer in spring to support growth. Light nitrogen boosts foliage development. In naturally rich environments (organic soils), fertilizer may be unnecessary.
Diseases and pests
This sedge is generally robust and rarely troubled by pests. In overly dry or poorly drained conditions, fungal issues may occur. Ensure good drainage, aeration, and regular maintenance to minimize risks.
Did you know?
The Carex genus comprises more than 2,000 species and ranks among the most diverse angiosperms worldwide. Carex aquatilis plays a major ecological role in northern wetlands, stabilizing banks and providing food and shelter for aquatic wildlife and waterfowl.
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.