Witch Alder Blue Shadow Fothergilla x intermedia Blue Shadow has unusual blue foliage and highly scented flowers. Bottle-brush like, fragrant creamy white flowers appear in Spring. Brilliant autumn colours. An excellent woodland shrub. Site: Requires shelterPosition: Full sun to partial shadeSoil: Moist, well drained, humus rich, acid soilSeasons of interest: Flowers in Spring, Autumn colourHardiness: HardyHeight: 6ft (2m) Spread: 6ft (2m)