HYDRANGEA as a Hedgeplant
(D = deciduous leaf losing)
Hydrangeas are not suitable for cold gardens, but in sheltered districts they make an arresting summer-flowering hedge.
Hydrangea macrophylla (syn. H. hortensis), 3 to 6 ft., remains attractive as the flower-heads dry gradually, turning deeper shades of blue and purple until the frost comes. Ideal for town gardens and for the seaside, but not in shade or windy positions. Hydrangeas need some cosseting for the first two or three winters. The pink-flowered kinds are usually hardier than those with blue. Plant named varieties 3 ft. apart in March or April. On lime-free , hydrangea colourant can be used to change the flower colour of some varieties. Those with pink flowers respond best, especially:
Ami Pasquier, 3-1/2 ft. Deep crimson flowers change to plum-purple.
Bouquet Rose, 5 ft. Pale pink flowers change to sky blue.
Leopold III, 5 ft. Large peach-pink flowers change to sky blue.