Acer griseum
Paperbark Maple
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This is an exceptional tree that has gained popularity in recent years. It thrives in tough, dry, lean soil and is usually pest free. The bark, autumn colour and ease of culture make this a class tree for both the large and small garden alike. Either multi-stem or single stem forms are available and each suits a different purpose in the landscape.
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Family |
Sapindaceae (Aceraceae) |
Genus |
Acer |
Species |
griseum |
Category |
Woody |
Type |
Tree (deciduous) |
Pronunciation |
USDA Hardiness Zone |
4 - 8 |
Canadian Hardiness Zone |
2a - 8a |
RHS Hardiness Zone |
H4 - H7 |
Temperature (°C) |
(-32) - (-7) |
Temperature (°F) |
(-25) - 20 |
Height |
6 - 9 m |
Spread |
5 - 8 m |
General Description |
A small tree with distinct bark and deeply dissected leaves. This species has been placed on the IUCN Red List as globally threatened. |
Cultivation |
Easy to grow in lean soils and once established requires little water, the trees in the Cuddy Garden in Strathroy have undergone a 3 month summer drought with little affect. Will also thrive in good garden soil; pest free. |
Shape |
Small tree with a somewhat rounded crown. |
Growth |
Medium |
ID Characteristic |
Exfoliating cinnamon coloured bark. |
Habitat |
Mountains and dry forest. |
Bark/Stem Description |
Outstanding, cinnamon colour with a slight sheen and exfoliating in thin sheets. |
Flower/Leaf Bud Description |
Sharply pointed and small to the point of being insignificant. |
Leaf Description |
Deeply dissected three lobed, 5 cm across and 8 cm in length. Very good autumn colour, usually red to orange but sometimes yellow. The leaves are often hairy on the underside and the petiole is dark pink. |
Flower Description |
Small, yellow-green and ornamentally insignificant. |
Fruit Description |
A slightly tomentose samara that often does not contain an embryo; they are held in small groups on the tree and persist often into the winter months. |
Colour Description |
Autumn leaf colour can be yellow to orange/red and quite attractive. |
Texture Description |
Finely textured leaf form, while the bark is medium to rough texture. |
Notable Specimens |
The A.M. Cuddy Gardens, Strathroy, Ontario, Canada. The University of Western Ontario, London, Ontario, Canada. Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. |
Propagation |
Occasionally from seed, but few are viable, stratify at 4°C for three months. Otherwise Michael Dirr reports some success with cuttings from seedlings. |