Zenobia pulverulenta 'Blue Sky'

RHS Plant Profile

dusty zenobia 'Blue Sky'

Synonyms

Zenobia 'Blue Sky'

Shrubs

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A spreading, deciduous or semi-evergreen shrub to 1.5m tall, with slender, arching shoots bearing alternate, glossy blue-green leaves, glaucous blue when young. In early and midsummer it produces pendent, bell-shaped, scented white flowers in erect to arching flowerspikes

Position

Full sun, Partial shade

Soil Types

Loam, Sand, Clay

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 10–20 years
Max Spread: 1-1.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Loam Sand Clay

Moisture: Moist but well–drained
pH: Acid

Position

Full sun Partial shade

Aspect: East–facing or North–facing or South–facing or West–facing
Exposure: 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

Fragrance Flower

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Ericaceae
Native to GB/Ireland: No
Foliage: Deciduous, Semi evergreen
Habit: Bushy
Genus: Zenobia are small or medium-sized deciduous or semi-evergreen shrubs with simple leaves and umbels of white, broadly bell-shaped flowers in early summer
Name Status: Accepted

How to Grow

Cultivation

Grow in acidic, humus-rich, moist but well-drained soil in full sun or partial shade in a sheltered site. Plant in shade in areas where the soil dries out in summer

Propagation

Propagate by seed or semi-ripe cuttings with bottom heat in summer

Suggested planting locations and garden types

Architectural
Cottage and informal garden
Low Maintenance

Pruning

See pruning group 2 or pruning group 5, in summer

Pests

Generally pest-free

Diseases

Generally disease-free