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Cytisus × praecox 'Warminster'
  • RHS AGM

Warminster broom [2]

A bushy small deciduous shrub with small, mostly simple leaves and pale creamy-yellow flowers in great abundance in late spring

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
1–1.5 metres
Growing conditions
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline
Colour & scent
StemFlowerFoliageFruit
Spring Cream Yellow Green
Summer Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H5
Botanical details
Family
Fabaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
All parts, especially the seeds, may cause mild stomach upset if ingested. Wear gloves and wash hands after handling
Genus

Cytisus can be deciduous or evergreen shrubs, ranging from prostrate to erect and almost tree-like, with small, simple or 3-parted leaves and pea-like flowers spring or summer

Name status

Accepted

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How to grow

Cultivation

Best grown in well-drained, poor acid soils in full sun. Tolerant of lime but may become chlorotic on shallow chalk soils. Plant when young; brooms resent transplanting

Propagation

Propagate by semi-ripe cuttings in late summer

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Flower borders and beds
Pruning

Pruning group 3, but do not cut into old wood

Pests

Broom gall mites may be a problem

Diseases

Can be affected by honey fungus and waterlogging

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