Bellevalia pycnantha (K. Koch) Losinsk. 'Green Pearl'

RHS Plant Profile
giant grape hyacinth 'Green Pearl'

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A spring-flowering, bulbous perennial to 30cm high with strap-shaped, greyish-green, semi-erect leaves up to 45cm long and an upright spike bearing tiny rounded, pale green flowers in a conical raceme

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity
1 year
Max Spread
0-0.1 metre
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Well–drained or Moist but well–drained
pH
Acid or Alkaline or 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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asparagaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus
Bellevalia are spring-flowering bulbous perennials with flat or channelled, strap-shaped leaves and racemes of small, deeply lobed, bell-shaped or tubular flowers in various collours
Name Status
Accepted

How to Grow

Cultivation

Grow in any well-drained soil in full sun

Propagation

Propagate by seed or by removal of offsets from mature bulbs when dormant in summer. Divide congested clumps to maintain vigour

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Low Maintenance
  • Cut flowers
  • Flower borders and beds
  • Banks and slopes
  • Underplanting of roses and shrubs

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free