About
Spiraea _ pachystachys is a bushy, upright deciduous hybrid shrub producing toothed, mid-green leaves and dense terminal panicles of white or pale pink flowers in summer. An ornamental choice for a sunny or lightly shaded border.
About the genus
Spiraea are deciduous shrubs, sometimes suckering, with simple leaves and short racemes, panicles or corymbs of small, 5-petalled white or pink flowers in spring or summer
Growing conditions
SunlightFull sun, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH6
Plant details
Plant typeShrubs
HabitBushy
FoliageDeciduous
Height1-1.5 metres
Spread1-1.5 metres
Time to full height5-10 years
Suggested usesCoastal, Cottage and informal garden, Wildlife gardens
Care notes
CultivationGrow in moist but well-drained soil in full sun or light shade
PruningPruning group 2 for spiraeas flowering on previous years stems, in summer after flowering
PropagationPropagate by softwood or semi-ripe cuttings in spring to late summer or hardwood cuttings in winter
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free but may be susceptible to honey fungus