Big Leaf Maple (Acer macrophyllum)–Trees of Sonoma County

Bigleaf maple is a large, deciduous tree that is native to the Pacific Northwest region of North America. It is a popular ornamental tree for its large leaves and impressive size.

General Information:

Scientific Name: Acer macrophyllum

Native to: Pacific Northwest region of North America

Mature Size: 50-100 ft tall and wide

Growth Rate: Fast

Ideal Planting Location: Full sun to partial shade, well-draining soil

Water Requirements: Regular watering, especially during dry spells or hot weather. Provide deep, thorough watering to keep the soil moist during the dry season. 

Common Pests and Diseases:

Bigleaf maple is susceptible to a variety of pests and diseases, including aphids, scales, powdery mildew, and verticillium wilt. To prevent these problems, maintain good tree health by avoiding damage to the tree’s roots and trunk, and promptly treat any signs of pest or disease infestations.

Additional Care Tips:

Mulch around the base of the tree is especially important for these water loving trees in order to conserve moisture and suppress weeds. Soil tests and fertilization may be required in the case of difficult site conditions.