Carex divulsa

RHS Plant Profile

grey sedge

RHS / Janet Cubey

Other common names

hesgen lwydlas

Grass Like

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A densely tufted, evergreen sedge to about 40cm with arching, dark green or greyish green leaves and short spikes of greenish-brown flowers in summer

Position

Full shade, Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Poorly–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full shade Full sun Partial shade

Aspect: West–facing or South–facing or North–facing or East–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Cyperaceae
Native to GB/Ireland: Yes
Foliage: Evergreen
Habit: Clump forming
Genus: Carex can be deciduous or evergreen, rhizomatous or tufted perennials, with triangular stems bearing linear or strap-shaped leaves and short or long spikes of tiny green or brown flowers
Name Status: Correct
Plant Range: Europe to Macaronesia

How to Grow

Cultivation

Easy to grow in most situations including damp soil and shade

Propagation

Propagate by seed sown in containers in a cold frame in spring or by division in early summer

Suggested planting locations and garden types

Cottage and informal garden
Gravel garden
Patio and container plants
Prairie planting
Coastal
Wildlife gardens
Low Maintenance
Banks and slopes
Flower borders and beds
Ground cover

Pruning

Comb or cut out dead leaves and flowers in spring; can be cut back by up to half in late spring or early summer

Pests

May be susceptible to aphids

Diseases

Generally disease-free