About
Oxydendrum arboreum, the sorrel tree or sourwood, is a large shrub or small tree with alternate, finely toothed, glossy leaves turning brilliant red in autumn. Pendant panicles of small, cylindrical, white flowers reminiscent of lily of the valley are produced in late summer. A beautiful and multi-season ornamental specimen for a moist, acid, sunny garden.
About the genus
Oxydendrum are deciduous shrubs or trees with oblong or lance-shaped, glossy leaves that colour brilliantly in autumn, and panicles of small, cylindrical, white flowers in late summer and early autumn. Excellent specimen plants for moist, acidic, sunny gardens.
Growing conditions
SunlightFull shade, Full sun, Partial shade
Soil typeClay, Loam, Sand
Soil pHAcid
Soil moistureMoist but well-drained
AspectEast-facing, South-facing, North-facing, West-facing
ExposureSheltered
UK hardinessH6
Plant details
Plant typeShrubs, Trees
HabitBushy
FoliageDeciduous
Height8-12 metres
Spread4-8 metres
Time to full height20-50 years
Suggested usesArchitectural
Native toE USA
Care notes
CultivationGrow in well-drained acidic soil in a sheltered position
PruningPruning group 1
PropagationPropagate by seed and semi-hardwood cuttings
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free