Panicum miliaceum 'Violaceum'

RHS Plant Profile
millet 'Violaceum'

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Upright, clump-forming annual to 90cm in height, with narrow, flat purple-violet leaves. Produces rigid panicles to 30cm long of purple-violet flowers, in small spikelets, in late summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 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 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)
H4

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
Panicum can be annual or perennial, evergreen or deciduous grasses, with flat, narrowly lanceolate leaves, with large finely branched panicles of small spikelets in late summer or autumn
Name Status
Unresolved

How to Grow

Cultivation

Grow in moderately fertile, well-drained soil in full sun. See Ornamental grasses cultivation

Propagation

Propagate by seed in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Prairie planting
  • Wildflower meadow
  • Wildlife gardens
  • Cut flowers
  • Flower borders and beds

Pruning

Cut down and tidy at the end of the growing season as foliage dies down

Pests

Generally pest-free

Diseases

Generally disease-free