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botanical name:
Hydrangea macrophylla 'Alpenglühen'
Hydrangea macrophylla 'Alpenglühen' © Deeproot Plant Base
synonyms:  Hydrangea macrophylla 'Alpenglow', Hydrangea macrophylla 'Alpengluhen'
family:  Hydrangeaceae
characteristics: shrub
height: 1.80m
width: 1.80m
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 large, domed mopheads, tending to be crimson red or purple on neutral to acid soils. Resists turning blue on acid soils. Compact habit and good dense foliage of large glossy green leaves.

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.

other notes:
Bred by Brugger, Germany, 1950

Somtimes sold in the USA with the alternative name of 'Glowing Embers', but but this is now regarded as a different cultivar.

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