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Shrubs

Buddleja paniculata

paniculate butterfly bush

Tender, deciduous or semi-evergreen shrub, up to 2m tall with lance-shaped, pale grey-green leaves, the leaves and stems covered in felty whitish hairs. Panicles of highly scented, white flowers with yellow-orange eyes are produced in late winter or early spring, in milder areas

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Ultimate height

1.5–2.5 metres

Time to ultimate height

5–10 years

Ultimate spread

1.5–2.5 metres

Sand

Chalk

Loam

Moisture

Well–drained

pH

Neutral, Alkaline, Acid

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–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 the UK: No
Foliage: Deciduous
Habit: 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
Plant range: Himalaya, China

How to grow

Cultivation

Grow in well-drained soil in full sun. with shelter from cold winds, can be trained on a warm sheltered wall, suited to southern counties and innner city microclimates. See buddleja cultivation for more detailed advice

Propagation

Propagate by semi-ripe cuttings in summer

Suggested planting locations and garden types

Wildlife gardens
Cottage and informal garden
City and courtyard gardens
Coastal
Gravel garden
Wall side borders

Pruning

Light prune after flowering

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

Get involved

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