Pennisetum alopecuroides 'Black Beauty'

RHS Plant Profile
Chinese fountain grass 'Black Beauty'

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Chinese fountain grass 'Black Beauty' RHS / Joanna Kossak
Grass Like
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A clump-forming grass to around 1m tall with narrow, arching green leaves. From summer into autumn, tall stems bear dark purple to black flowers on bottlebrush-like heads

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
1-1.5 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–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
Evergreen
Habit
Bushy
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 a light, moderately fertile, well-drained soil. May need winter protection in colder areas. See ornamental grasses cultivation

Propagation

Propagate by division in spring

Suggested planting locations and garden types

  • Coastal
  • Cottage and informal garden
  • Prairie planting
  • Flower borders and beds

Pruning

Remove dead foliage and old flowered stems in spring

Pests

Generally pest-free

Diseases

Generally disease-free