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Genista 'Porlock' AGM

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© RHS

Characteristics

Plant type

Shrub

Habit

Bushy

Fragrance

Flower

Resilience

Hardiness

H3 (half hardy - unheated greenhouse/mild winter)

Colour

Flower

Yellow in Spring

Foliage

Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

1.5-2.5 metres

Ultimate spread

1.5-2.5 metres

Time to ultimate height

5-10 years


Preferred common name

broom 'Porlock'

Family

Papilionaceae


Genista are deciduous, sometimes spiny, shrubs or small trees with small, simple or trifoliate leaves and solitary, racemose or clustered, pea-like yellow flowers which are sometimes fragrant

'Porlock' is a semi-evergreen, medium-sized shrub with small leaves and racemes of fragrant, bright yellow flowers in spring

Synonym(s)

  • Cytisus 'Porlock'

How to grow

Sunlight

  • Full sun

Aspect

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

Cultivation

Grow in poor but well-drained soil in full sun

Soil

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

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types

Drought Resistant, Ground Cover, Banks and Slopes, Low Maintenance, Gravel Garden, Cottage/Informal Garden or City/Courtyard Gardens


How to care

Pruning

Pruning group 1. Will not tolerate hard pruning. New growth will not rejuvenate from old wood

Pests

Prone to aphids

Diseases

Generally disease free