Hydrangea paniculata 'Phantom' an RHS Award of Garden Merit winner is a deciduous shrub producing very large, dense, upright panicles of pinkish-white flowers in late summer and early autumn. It is less particular about soil pH than many other hydrangeas, and will grow well provided there is fertile soil that does not dry out. Best grown in partial shade and sheltered from cold winds. Flowers July-September. Height 150-200cm. Supplied in a 7.5-10 litre pot.