Poa glauca

RHS Plant Profile
glaucous meadow grass

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Other common names

gweunwellt llwydlas

Synonyms

Poa caesia

Grass Like

A rare native grass found only in a few mountainous areas, with narrow, blue-green, waxy leaves and stems to about 40cm tall. Open flower sprays, with green panicles often tinged with purple, appear in summer

Position

Full sun

Soil Types

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

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

Position

Full sun
Aspect
East–facing or South–facing or West–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
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Poaceae
Native to GB/Ireland
Yes
Foliage
Semi evergreen
Habit
Tufted
Genus
Poa can be annual or perennial grasses forming clumps of linear leaves and open flowering panicles in summer
Name Status
Correct
Plant Range
Europe to C Asia

How to Grow

Cultivation

A rare native, found only on rocky slopes in a few mountainous areas. Grow in well-drained soil in full sun

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

  • Gravel garden
  • Rock garden
  • Wildlife gardens

Pruning

No pruning required, but can trim back in early spring to keep tidy

Pests

Generally pest-free

Diseases

Generally disease free