Hydrangea macrophylla 'Lanarth White' is a large deciduous shrub producing lacecap flowers from mid summer into autumn. The pale flowerheads are a deeper colour when in bud. In alkaline soil the flowers take on a pink tinge, while in acidic soil they will be blue. Protect from cold, drying winds. Prune hard in spring to enhance flowering. Height 100-150cm. Supplied in a 7.5-10 litre pot.