Acer x freemanii, or freeman maple, a hybrid between red and silver maples, is native to Ontario and is commonly found in the nursery industry with numerous cultivars available. The species combines the strong branch attachment and striking fall colour of red maple with the fast growth rate, drought-tolerance and broader soil-type-range of silver maple. It prefers well-drained, moist, acidic soil in the full sun to partial shade, and can tolerate heavy clay soils. An observed issue with Freeman maples is that they develop multiple tight crotches with enclosed bark - which can result in crown breakage in mature trees. It is advisable to prune in the late spring (June), as cutting may cause sap to leak from the wounds. While this can impact the tree's appearance, it does not harm the tree. Some areas of Canada are seeing an over-planting of freeman maple, and therefore it's advisable to look at local diversity at the site before planting.
Often superior to Acer rubrum and Acer saccharinum
Tree Characteristics
Growth Rate
Fast (60cm or more per year)
Width
8 - 13m
Height
15 - 23m
Soil Quantity
21 - 30 m
Leaves
Deciduous
Insects and Diseases
Insects and Diseases
No serious or common issues in the urban environment. Verticillium wilt can be an issue, which can cause branch/ limb death and severe cases can cause tree mortality.
Tree Tolerances
Soil Salt Tolerance
Unknown
Salt Spray Tolerance
Unknown
Flooding Tolerance
High
Drought Tolerance
High
pH Tolerance
Tolerant of acid to slightly alkaline soil (pH 5.0 to 7.5)