About
Buddleja delavayi is a deciduous shrub that can reach heights of up to 4 meters. It features elongated, green leaves and produces fragrant clusters of pale pink and purple flowers from late spring through mid-summer. In the UK, it requires winter protection and is often best suited for cultivation in a conservatory setting.
About the genus
Buddleja comprises evergreen and deciduous shrubs, and in some cases, it can also be found as small trees or scrambling climbers. The foliage consists of simple leaves, and the plants produce clusters of small, tubular flowers that emit a pleasant fragrance.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Sand, Chalk, Loam, Clay
- Soil pH
- Neutral, Alkaline, Acid
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- South-facing, West-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Shrubs
- Habit
- Bushy
- Foliage
- Deciduous
- Height
- 1.5-2.5 metres
- Spread
- 1.5-2.5 metres
- Time to full height
- 5-10 years
- Suggested uses
- Wildlife gardens, Cottage and informal garden, City and courtyard gardens, Coastal
- Native to
- SW China
- Fragrance
- Flower
Care notes
- Cultivation
- Grow in well-drained soil in full sun. See buddleja cultivation for more detailed advice
- Pruning
- Pruning group 6
- Propagation
- Propagate by hardwood cuttings in autumn, or by semi-hardwood cuttings in summer
- Pest resistance
- May be susceptible to aphids, capsid bugs, caterpillars, earwigs, figwort weevils, glasshouse red spider mite, leaf and bud eelworm, and mullein moth
- Disease resistance
- May be susceptible to honey fungus, fungal leaf spot, and virus diseases