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botanical name:
Hydrangea macrophylla 'La Marne'
Hydrangea macrophylla 'La Marne' © Deeproot Plant Base
family:  Hydrangeaceae
characteristics: shrub
height: 1.70m
width: 2.00m
growth rate: medium
growth habit: bushy
leaf colour: green
flower colour: light blue
stem/bark: brown
main season: Summer
aspect: full sun, part shade, shade
conditions: moist soil, coastal
preferred soil pH: any
minimum temp: -23°C
USDA zone: 6 to 9
description:
Hortensia variety with large, pink to light blue mophead flowers, the colour depending on the soil pH. Strong growing and tolerant of exposed positions.

cultivation:
Moist, well drained, reasonably fertile, humus-rich soil. Sun or part shade, preferably with shelter from cold, drying winds. May become chlorotic on very shallow chalky soil. Performs well in seaside locations.
The flower colour is influenced by the soil pH; acid soil, with a pH of less than 5.5, will generally produce blue flowers. A pH above this tends to produce pink flowers, or in some cases neutral soils result in off-white flowerheads.

usage:
Good for coastal locations.

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