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Shrubs

Buddleja marrubiifolia

woolly butterfly bush

A half-hardy evergreen shrub, to around 1.5m high, with arching branches and woolly, silvery leaves with bluntly toothed edges. Rounded clusters of small orange flowers are produced in late spring or early summer

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Ultimate height

1–1.5 metres

Time to ultimate height

5–10 years

Ultimate spread

1–1.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing

Exposure

Sheltered

Drought resistance

Yes

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)

Botanical details

Family: Scrophulariaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Bushy, Spreading branched
Genus: Buddleja can be evergreen or deciduous shrubs, occasionally trees or scrambling climbers with simple leaves and panicles of small, tubular fragrant flowers
Name status: Correct

How to grow

Cultivation

Needs a sunny spot with excellent drainage; in areas prone to winter wet, it may be best grown in containers and overwintered in a cool greenhouse. See buddleja cultivation for more detailed advice

Propagation

Propagate by semi-hardwood cuttings in summer

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Gravel garden
Patio and container plants
Conservatory and greenhouse

Pruning

Pruning group 8

Pests

May be susceptible to aphids, capsid bugs, caterpillars, earwigs, figwort weevils, glasshouse red spider mite, leaf and bud eelworm, and mullein moth

Diseases

May be susceptible to honey fungus, fungal leaf spot, and virus diseases

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