Pennisetum alopecuroides 'Dark Desire'

RHS Plant Profile
Chinese fountain grass 'Dark Desire'

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A clump-forming, perennial grass to about 90cm with narrow, arching, bright green leaves topped with soft, bottlebrush flowerheads from mid-summer to late autumn. These open green with a reddish tinge, becoming purple to black

Position

Full sun

Soil Types

Chalk, 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 Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
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)
H3
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Poaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Pennisetum can be annual or perennial, evergreen or deciduous grasses, clump-forming or spreading in habit, with linear leaves and narrow flowering panicles with conspicuous bristles
Name Status
Unresolved

How to Grow

Cultivation

Grow in light, moderately fertile, well-drained soil. May need winter protection in colder areas

Propagation

Propagate by division in spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Flower borders and beds

Pruning

Remove dead foliage and old, flowered stems in spring

Pests

Generally pest-free

Diseases

Generally disease-free