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Carex ericetorum

Carex ericetorum · Cyperaceae

The gardener's calendar

The right move for September

Ideal time to plant carex ericetorum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Evergreen, blue-green
Flowering
April to June, discreet spikes
Adult size
30 to 50 cm in height
Growth
Moderate
Hardiness
Very hardy, down to -20°C
Origin
Western and central Europe
Soil type
Acidic, well-drained, poor

Care

Exposure

Heather sedge prefers full sun or partial shade. It tolerates windy and exposed areas, making it an excellent choice for coastal or alpine gardens. Sufficient light ensures dense and colorful foliage.

Soil

This species appreciates acidic, well-drained and even poor soils in organic matter. It fears waterlogging and adapts poorly to chalky or overly rich soils. Adding sand or gravel helps drainage if necessary.

Watering

Once established, heather sedge is very drought-tolerant thanks to its deep root system. Water moderately during the growing season (spring-summer) and reduce watering in winter. Absolutely avoid standing water.

Pruning and cutting

Spring cleanup is sufficient: remove dead or winter-damaged foliage. You can trim the clump lightly before vegetation resumes to encourage density. No regular pruning needed.

Fertilizer

No fertilizer application is really necessary. This sedge prefers poor environments. Excess fertilizer can promote soft growth and reduce hardiness.

Diseases and pests

Very few phytosanitary problems. Avoid standing moisture which could cause root rot. Pests generally ignore this robust species.

Did you know?

Sedges, known as Carex, play a major ecological role in the heaths and peat bogs of northern Europe, forming vegetation carpets that stabilize fragile soils for millennia. The name "ericetorum" directly references its natural habitat: acidic heathlands and moors where it thrives alongside heathers.

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.

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