WS October Tree of the Month: Bigleaf Maple

Fall has arrived! And with it the beautiful yellows, reds, and golds of the turning leaves. Many of our native tree species put on this yearly display for us; Oregon white oak, red alder, and Pacific Dogwood to name a few. But none quite so spectacularly as the bigleaf maple. With leaves up to 10 inches wide, the bigleaf maple not only packs a punch in the fall but provides valuable shade during the summer.

Bigleaf maple (Acer macrophyllum) is a versatile tree, equally at home in full sun or under canopy and thrives in a range of soil conditions. It provides diverse wildlife habitat, including forage for deer and elk, nesting for birds, and its seeds are used as food by many species of birds and animals. After the tree dies, it continues to be an important wildlife feature as cavity-nesting birds and small mammals use the hollow log for shelter. A mature maple provides considerable leaf litter for the soil and is therefore considered a ‘soil-building’ species. If it makes sense for your yard, leave those leaves! They will decompose, fertilizing the soil as they do so. Bigleaf maple is also prized for its wood, which is used commercially for flooring, furniture and cabinet building, veneer, musical instruments, and as fuel.