Hydrangea macrophylla 39ab green shadow39 is a smaller more compact form of this ever45popular shrub its flowers have a wonderfully interesting colour45changing habit with blooms that appear almost lime green as they mature and open a reddish pink tinge begins to infuse the edges of the petals and eventually the whole flower will take on this deep rich hue with new flowers opening all through late summer and into the autumn this continuous colour parade brings a fascinating