Arrhenatherum elatius var. bulbosum 'Variegatum' (v)

RHS Plant Profile
tuber oat grass 'Variegatum'

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tuber oat grass 'Variegatum' RHS 2002

Synonyms

Arrhenatherum variegatum

Grass Like
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A deciduous tufted grass with characteristic swollen stem-bases, white-margined leaves and open panicles of oat-like flowers in late 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
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)
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Poaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
Genus
Arrhenatherum are deciduous perennial grasses, forming loose tufts of linear leaves, with lax, oat-like flowering panicles in summer
Name Status
Accepted

How to Grow

Cultivation

Easy to grow in most well-drained fertile soils

Propagation

Propagate by division from mid-spring to early summer

Suggested planting locations and garden types

  • Low Maintenance
  • Flower borders and beds
  • Ground cover

Pruning

Cut back to ground level in mid-summer

Pests

Generally pest-free

Diseases

Susceptible to a rust