Cytisus nigricans 'Cyni'

RHS Plant Profile
black-rooted broom 'Cyni'
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Shrubs

A compact, upright deciduous shrub, to 1m high, with leaves of three leaflets, dark green above and pale green beneath. A profusion of long, slender terminal spikes of scented yellow flowers appear in summer, later than is typical for this genus

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
5–10 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
West–facing or East–facing or South–facing
Exposure
Sheltered
Hardiness
H5
Drought Resistance
Yes

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Fabaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Humans/Pets (dogs): Harmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
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

How to Grow

Cultivation

Plant young plants in full sun in well-drained soil; grows better in poor soils rather than rich soils

Propagation

Propagate by heeled semi-ripe cuttings of lateral shoots in summer

Suggested planting locations and garden types

  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds

Pruning

Little or no pruning required ( Pruning group 1) but can be cut back in spring to keep it compact, and deadheaded after flowering to encourage further flower spikes

Pests

May be susceptible to broom gall mites

Diseases

May be susceptible to honey fungus