Overview
Philadelphus delavayi is a shrub shrub in the genus Philadelphus, part of the Hydrangeaceae family, with deciduous foliage. It typically grows around 4.0 m tall. Philadelphus delavayi grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H7. Suggested uses include borders, cottage gardens, screening and scented gardens. It is native to China South-Central, Myanmar and Tibet.
About
Philadelphus delavayi is a deciduous shrub in the genus Philadelphus, native to China, Tibet, and Upper Burma. It was discovered by Pierre Jean Marie Delavay in 1887.
Wikipedia contributors, CC BY-SA 4.0 — Philadelphus delavayi
About the genus
Philadelphus (mock-orange) is a genus of about 60 species of shrubs from 3–20 ft tall, native to North America, Central America, Asia and (locally) in southeast Europe.
Wikipedia contributors, "Philadelphus", CC BY-SA 4.0 — Philadelphus
Growing conditions
Best soil and position for Philadelphus
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy, Clay
- Soil pH
- Acid, Neutral, Alkaline
- Soil moisture
- Moist but well-drained
- Aspect
- West-facing
- Exposure
- Sheltered
- UK hardiness
- H7
Plant details
Philadelphus delavayi size, habit and characteristics
- Plant type
- Shrub
- Habit
- Shrub
- Foliage
- Deciduous
- Height
- 4.0 m
- Suggested uses
- Borders, Cottage gardens, Screening, Scented gardens
- Native to
- China South-Central, Myanmar, Tibet
- Fragrance
- Yes
Care notes
Pruning and caring for Philadelphus delavayi
- Propagation
- Hardwood cuttings, Softwood cuttings
- Pest resistance
- Aphids, Blackfly
- Disease resistance
- Powdery mildew
Frequently asked questions
Where is the best place to plant Philadelphus delavayi?
Philadelphus delavayi prefers full sun. It suits sheltered positions.
What soil does Philadelphus delavayi need?
Philadelphus delavayi is adaptable and grows happily in most soil types, including sandy, loamy and clay. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
How big does Philadelphus delavayi grow?
Philadelphus delavayi reaches a height of 4.0 m.
Is Philadelphus delavayi hardy in the UK?
Philadelphus delavayi has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Philadelphus delavayi?
Hardwood cuttings, Softwood cuttings.
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