Cytisus demissus

RHS Plant Profile

dwarf broom

Synonyms

Cytisus hirsutus 'Demissus'
Chamaecytisus polytrichus
Chamaecytisus hirsutus var. demissus

Shrubs

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Slow-growing, mat-forming, deciduous shrub to 8cm tall and 20cm wide with mid-green leaves, silky-hairy beneath and composed of leaflets; bears clusters of yellow flowers with brown keels and bracts, in late spring and early summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 0.1-0.5 metres
Max Height: Up to 10 cm

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun

Aspect: South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Fabaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Matforming
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: Correct

How to Grow

Cultivation

Grow in moderately fertile well-drained soil in full sun, tolerant of a range of soils but best in poor acid soils. Plant directly from tubs when small as they resent transplanting

Propagation

Propagate by semi-ripe cuttings in late summer

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Gravel garden
Rock garden
Banks and slopes
Flower borders and beds

Pruning

Pruning group 3 but do not cut back into old wood

Pests

May be susceptible to broom gall mites

Diseases

May be susceptible to honey fungus