Carex oshimensis 'Everillo'PBR (EverColor Series)

RHS Plant Profile
Japanese sedge 'Everillo'

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A clump-forming evergreen sedge to 60cm tall, producing lime-green to yellow foliage that gradually deepens to golden-yellow as the season progresses. Upright pale to dark brown flower spikes appear in early summer

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or North–facing or West–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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cyperaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Tufted
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
Accepted

How to Grow

Cultivation

Easy to grow in any moisture-retentive soil with good drainage in sun or part 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

  • Coastal
  • Gravel garden
  • Patio and container plants
  • City and courtyard gardens
  • Cottage and informal garden
  • Low Maintenance
  • Garden edging
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

Comb, rake out or cut back any dead leaves and flowers in spring

Pests

Aphids sometimes attack stem bases

Diseases

May be susceptible to a rust