Ampnbspcustomer review ratingmulti45coloured flower headsideal specimen plantthis outstanding hardy shrub produces the most exhilarating coloured blooms imaginable from summer to early autumn hydrangea macrophylla 39glam rock39 will burst into a psychedelic frenzy of multicoloured flower heads that will create a real 39wow factor39 in your garden like many hydrangeas this striking variety produces slightly different colour tones depending on the soil ph an ideal specimen s