Hydrangea serrata 'Grayswood'

Height
reaches 250 centimetres

Leaf
acuminate; reddish-brown serrated margin

Flowering
from June to the first cold spells

Inflorescence
lacecap; blue or pink fertile flowers surrounded by about nine sterile flowers made up of four or five non-overlapping sepals, which are white at the beginning, then turn red, starting from the tips