Buddleja 'Orange Sceptre'

RHS Plant Profile

butterfly bush 'Orange Sceptre'

Shrubs

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Upright, deciduous shrub, a hybrid buddleja (B. stachyoides x B. tubiflora) about 2.5m tall, or more in warm climates, with large felted grey-green leaves. Clusters of tubular orange flowers in panicles, are produced in pairs from the leaf axils, in late summer and autumn

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 1.5-2.5 metres
Max Height: 2.5-4 metres

Growing Conditions

Chalk Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: 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): H3

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Scrophulariaceae
Native to GB/Ireland: No
Foliage: Deciduous, Semi evergreen
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: Accepted

How to Grow

Cultivation

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

Propagation

Propagate by semi-ripe cuttings in summer, or by hardwood cuttings in autumn

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Wildlife gardens
Sub-tropical
Conservatory and greenhouse

Pruning

Pruning group 6 or Pruning group 13 for wall-trained plants

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