Acer saccharinum (Silver Maple)


Michael's Opinion

A tree that has many good points and several bad ones. Fast growing for a maple and majestic upon old age it can be a classy tree, I have one beside the house that is in decline and well over 120 years old. The negatives are it can produce a lot of seed litter and consequently seedlings. The wood is also weak, and the havoc in the Cuddy Gardens during an ice storm in 2003 almost destroyed the garden; the tree was planted as a cheap windbreak. It has been used in the past as a street tree, where unfortunately its management is often neglected and large limbs are removed. This causes unnecessary structural deterioration and the tree is destined to fail.

Botanical Information

FamilySapindaceae (Aceraceae)
GenusAcer
Speciessaccharinum
CategoryWoody
TypeTree (deciduous)
OriginCanada and United States of America.
Pronunciation

Details

USDA Hardiness Zone3 - 9
USDA Hardiness Ref.
Canadian Hardiness Zone1a
Canada Hardiness Ref.
RHS Hardiness ZoneH4 - H7
RHS Hardiness Ref.
Temperature (°C)(-40) - (-1)
Temperature (°F)(-40) - 30
Height15-25 m
Spread10-20 m
GrowthFast
Flowering PeriodApril

Description and Growing Information

General DescriptionMaple leaves that are deeply dissected with a silver underside, rough grey bark, and somewhat arching branches. Often a very large tree. This species has been placed on the IUCN Red List as least concern.
ID CharacteristicMaple leaves that are deeply dissected with a silver underside and which are generally three lobed.
ShapeUpright with spreading branches that can form an oval to rounded crown with pendulous branchlets
LandscapeOften used as a street tree as it can withstand dry soil conditions and is fast growing but roots can cause sidewalks to buckle and large branches become a liability as they can break easily.
PropagationSeed has no dormancy and germinates immediately after maturing, softwood cuttings root easily.
CultivationTolerant of wide variety of soils but achieves maximum size in moist soils along streams and moist soiled woods. Transplants well. Prefers slightly acid soil.If pruned, remove only small limbs to allow closure of the wounds, summer or late winter pruning is best.
PestsSome maple tar spot but not a problem.
Notable SpecimensThroughout Southern Ontario, Canada. The A.M. Cuddy Gardens, Strathroy, Ontario, Canada.
HabitatWoodlands throughout Southern Ontario, Canada, and along edges of fields and streams.
Bark/Stem DescriptionLight grey and smooth when young turning dark grey and rough when old with many large flat plates.
Flower/Leaf Bud DescriptionSmall rounded buds, held in threes below the flower buds. The flower buds are also distinct as they are towards the end of the branches and involve large rounded clusters of buds, red in colour.
Leaf DescriptionLeaves to 15 cm across, deeply dissected and usually with five main lobes. Opposite and silvery beneath attached with a petiole to 10 cm long.
Flower DescriptionSmall, insignificant, greenish yellow flowers borne in April.
Fruit DescriptionSamara, 1.75-2.5 cm, a maple with one of the largest fruit.
Colour DescriptionA pale yellow mixed with green and the occasional burst of red and orange.
Texture DescriptionMedium to coarse textured tree.

Photographs