Acer palmatum 'Sango-kaku' (Sango-kaku Coral-bark Maple, Sango-kaku Japanese Maple)

Botanical Information

FamilySapindaceae
GenusAcer
Speciespalmatum
Cultivar'Sango-kaku'
CategoryWoody
TypeTree (deciduous), Shrub (deciduous)

Details

USDA Hardiness Zone6 - 7
USDA Hardiness Ref.
Canadian Hardiness Zone6b
Canada Hardiness Ref.
RHS Hardiness ZoneH6
RHS Hardiness Ref.
Temperature (°C)-20 to -15
Temperature (°F)4 to 5
Height4 m - 8 m
Spread2.5 m - 4 m
GrowthSlow
Flowering PeriodApril, May

Description and Growing Information

General Description'Sango-Kaku' can be either a small deciduous tree or a large shrub. The leaves appear in spring as pinkish-yellow before changing to light green then yellow-gold in autumn.
ShapeHemispherical.
PropagationPropagate by grafting or softwood cuttings.
CultivationMoist but well-drained soil. The plant prefers partial shade but can tolerate full-sun with extra care.
Notable SpecimensLanhydrock Gardens, Cornwall, United Kingdom. Trebah Garden Trust, Mawnan Smith, Falmouth, Cornwall, United Kingdom.
HabitatHorticultural origin.
Bark/Stem DescriptionSmooth, greenish-grey or light brown in colour with greyish-green glabrous branchlets.
Flower/Leaf Bud DescriptionConical, purplish-red with 5 pairs of scales.
Leaf DescriptionSuborbicular, thin, 5-7 lanceolate lobes with a cordate to subtruncate base, 3-6 x 4-8 cm.
Flower DescriptionThe flowers are clustered 10-20, forming a raceme. Individual flowers have 5 reddish purple sepals and 5 pale yellow to pinkish-white petals.
Fruit DescriptionWinged samaras, elliptic-convex, veined nutlets, produced in September.

Photographs