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Lavandula angustifolia 'Imperial Gem' AGM

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© RHS 1997

Characteristics

Plant type

Shrub

Habit

Bushy

Fragrance

Flower

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Dark Purple in Summer

Foliage

Green and Grey/Silver in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

English lavender 'Imperial Gem'

Family

Lamiaceae


Lavandula are small aromatic evergreen shrubs with usually narrow, simple, entire, toothed or lobed leaves and small tubular flowers in dense spikes in summer

'Imperial Gem' is a compact evergreen shrub with narrow grey-green leaves and fragrant spikes of deep purple flowers in summer

Synonym(s)

  • Lavandula 'Imperial Gem'

How to grow

Sunlight

  • Full sun

Aspect

  • East-facing, South-facing or West-facing
  • Sheltered

Cultivation

Grow in well-drained soil in a sheltered, sunny position

Soil

  • Well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

Banks and Slopes, City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds, Garden Edging, Gravel Garden, Mediterranean Climate Plants, Patio/Container Plants, Rock Garden, Wildlife Gardens, Coastal or Drought Resistant


How to care

Pests

Can get rosemary leaf beetle and cuckoo spit (froghoppers)

Diseases

Grey moulds may be a problem