Acer negundo
Box Elder
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Box Elder (Acer negundo) - Description
A. negundo are trees that are native to most of the United States. They are fast growing to 60 feet (usually less) and grow as wide or wider. The leaves are divided into three to nine oval, 2-5 inch long leaflets with toothed margins. The leaves are yellow in fall.
Box Elder (Acer negundo) - Blooming
Maples are not known for their flowers but they do flower. The effect can be striking if the whole tree is in flower. The tiny flowers can be yellow, green, orange or red. They Maple tree fruit are unique. They resemble wing nuts that are sold at the hardware store and may come different colors.
Box Elder (Acer negundo) - Growth
Maples are a very large group of trees that come in many different sizes, leaf shapes and have different growth requirements. Maples grow well in northern latitudinal climes. In warmer climates leaves will show marginal leaf burn in mid-Summer and may not show Autumn colors in the Fall. Some species of Maple (such as A. buergerianum) can be trained to grow as bonsai trees.
Box Elder (Acer negundo) - Planting
Usually grown from ripe seed. Otherwise, bud in late summer, graft in winter.
Box Elder (Acer negundo) - Pest
Some species are susceptible to aphid damage, which can be resolved with a dimethoate spray. The leaves can be eaten by the larvae of a number of moth/butterfly species. Maples are affected by a number of fungal diseases. In late summer and autumn leaves can be disfigured by "tar spot" and mildew, but neither usually have an effect on long-term health. Though mostly deer resistant young trees, particularly Japanese maples are not.
Box Elder (Acer negundo) - Interesting facts
Maples make great bonsai plants. The most popular species for bonsai include A. palmatum, A. ginnala (Amur Maple), A. campestre (Field Maple), A. buergerianum (Trident Maple), and A. monspessulanum (Montpellier Maple).
Box Elder (Acer negundo) - Soil and irrigation
Prefers moist acidic soil. Alkaline soils (pH gt; 7.5) usually cause a yellowing of the leaf blades, often with pronounced green veins and stunted. Constant water is needed to support Maples' extensive shoot system especially while the tree is getting established. Occasional deep irrigations will promote deeper root development which will ease the constant need for available water.
