Pygmy laburnum

Cytisus ardoinii | Also known as: Broom | Rating: 0 votes | Print / Pdf

Cytisus ardoinoi or pygmy laburnum is a shrub with small leaves that are made up of three leaflets. The flowers are a bright yellow and are similar in shape to those of the pea plant. It's a spreading plant that grows to form a mat. It likes full sun and will grow best in neutral or acidic soil. It's a toxic plant, if you eat it, it can give you a stomach ache so it's best avoided. It can benefit from a prune but don't touch the old wood. It can be affected by honey fungus and broom gall mites and it can suffer if it gets waterlogged.

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Known dangers?
  • yes
Dangers: comments
  • Avoid eating this plant, or risk having mild stomach upset.
Height [m]
  • 0.2 - 0.6
Spread [m]
  • 0.2 - 0.6
Dominant flower colour
  • Yellow
Flower Fragrance
  • No, neutral please
Flowering seasons
  • Late spring
  • Early summer
  • Mid summer
  • Late summer
Foliage in spring
  • Green
Foliage in summer
  • Green
Foliage in Autumn
  • Green
Foliage in winter
  • Green
Propagation methods
  • semi-ripe cuttings
  • seed
  • Hardwood cuttings
Growth habit
  • Mat-forming
  • Acidic
Hardiness zone
  • Z6-8
Heat zone
  • H8-6
Winter temperatures [°C]
  • -23 - -7
Heat days
  • 45 - 120
  • well-drained
Soil type
  • sandy
  • loams
Sun requirements
  • Full sun
  • Exposed
  • Sheltered
Standard category
  • Trees & shrubs
  • Shrubs
Grown for
  • Attractive Flowers
Creative category
  • For Beginners
  • Colours
Garden type
  • Rock garden
Garden spaces
  • Flower beds
Gardening expertise
  • beginner
Time to reach full size
  • up to 10 years