Also called Broadleaf Maple and Oregon Maple Acer macrophyllum
The Bigleaf Maple
The Bigleaf Maple is an excellent shade tree when grown in a large enough location with ample watering. The wood has been used to make piano frames and the tree can be tapped for maple syrup.
The flowers are yellow to light green in long clusters and appear before the tree leafs out. Bigleaf maple seeds are large with a triangular to oval shape. Seed size is 0.16" to 0.47" or slightly less then 1/2 inch.
The Bigleaf Maple can be grown in a wide variety of conditions from the cool moist climates of the Washington coast to the warm dry condition of southern California as long as it can attain a reliable water source such as bottom lands near streams or rivers.
Soil Requirements: The Bigleaf Maple will grow in a wide variety of soils but prefers well drained moist soils and a good subterranean water source if growing in the wild. Used as a yard or landscape tree soil is less important. Unless your soil is heavy clay you should not have problems growing the Bigleaf Maple if regular deep watering is done.
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The Bigleaf Maple is one of the few trees viable as a commercial hardwood species in the Pacific northwest. Mature bigleaf maples grow to about 50 ft tall but can reach 100 ft with trunk diameters 36" to 48". The bigleaf maple's leaves are unusually large and can measure from 12" to 24" size. The tree has a rounded crown with stocky branching. Trees growing close together will have few in any lower branching for the bottom 3rd to half of tree.