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botanical name:
Acer palmatum 'Osakazuki'
Acer palmatum 'Osakazuki' © Deeproot Plant Base
common name:  Seven-Lobed leaved Japanese Maple
synonyms:  Acer palmatum 'Ôsakazuki', Acer heptalobum 'Osakazuki', Acer palmatum var. heptalobum 'Osakazuki', Acer palmatum 'Taihai'
family:  Sapindaceae
characteristics: tree
height: 6.00m
width: 6.00m
growth rate: slow
growth habit: broad headed
leaf colour: green
flower colour: red
fruit colour: red
stem/bark: brown
main season: Autumn
aspect: full sun, part shade
conditions: moist soil
preferred soil pH: neutral-acid
minimum temp: -20°C
USDA zone: 6 to 9
description:
Large seven-lobed, palmate soft green leaves, later producing reliable bright scarlet autumn colours. Robust grower which tolerates sun and heat well. Eventually makes a small spreading tree with a broad, rounded canopy.

cultivation:
Moist, well drained, fertile soil in sun or part shade. Grows best and gives the most spectacular autumn colour on neutral to acid soil. Needs a position sheltered from cold winds and late frosts, which can damage emerging foliage. Prune if required, by removing dead or unwanted branches in late autumn to midwinter.

propagation:
By grafting. Sometimes available as seed, it is uncertain if they reliably come true.

other notes:
Well known old Japanese cultivar.

RHS AGM

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