Hydrangea macrophylla ‘Souvenir du Président Doumer’
Hydrangeas are a shade loving plant that grow best in a shady part of the garden.
President Doumer has large mop head blooms held above large soft green leaves, making a charming mass display of blooms. Flower colour is blue tinged purple when grown in acidic soils or a deep pink if the soil is alkaline.
Grows as a deciduous, rounded shrub to a height of 1 to 2 meters tall and 1.5 meters wide.
Soil can be made alkaline by adding sulphur/calcium nitrate, or made acidic by adding aluminium sulphate.
Syn. Hydrangea macrophylla ‘President Doumier’, which is usually used in Australia.