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botanical name:
Hydrangea macrophylla 'Ami Pasquier'
Hydrangea macrophylla 'Ami Pasquier' © Deeproot Plant Base
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family:  Hydrangeaceae
characteristics: shrub
height: 1.50m
width: 1.50m
growth rate: slow
growth habit: bushy
leaf colour: green
flower colour: red
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 type with freely produced, domed mopheads of large florets, flower colour ranging from deep pinkish red on alkaline soils, to mauve-blue on acidic soils. Compact growth habit making a rounded small sized shrub.

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.

other notes:
RHS AGM

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