About
Philadelphus schrenkii, Schrenk's mock orange, is a large, upright, deciduous shrub with peeling bark and very scented, white, four-petalled flowers 3 cm wide in clusters of five to seven. One of the earliest Philadelphus to flower, in late spring and early summer. A rewarding and free-flowering mock orange for a sunny, well-drained border.
About the genus
Philadelphus, the mock oranges, are deciduous shrubs with simple, opposite leaves and bowl-shaped, usually strongly fragrant, white or cream flowers borne singly or in small panicles or racemes in summer. Reliable and popular garden shrubs.
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, North-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeShrubs
HabitBushy
FoliageDeciduous
Height2.5-4 metres
Spread2.5-4 metres
Time to full height10-20 years
Suggested usesCoastal, Cottage and informal garden
Native toKorea to E. Siberia
FragranceFlower
Care notes
CultivationGrow in any moderately fertile, well-drained soil in sun or semi-shade
PruningPruning group 2
PropagationPropagate by softwood or hardwood cuttings
Pest resistanceMay be susceptible to aphids
Disease resistanceMay be susceptible to honey fungus (rarely) and powdery mildews