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PlantSnap
Plant Care
Red maple
(Acer rubrum)
Also Known As
Red maple, Swamp maple, Acer, Scarlet maple
About This Plant
Acer rubrum is a deciduous tree that can grow up to 100 feet (30 meters) tall. It has a rounded crown and a straight trunk with grayish-brown bark. The leaves are three-lobed and turn bright red in the fall. The tree produces small red flowers in early spring before the leaves appear, and it bears winged seeds in the fall.
Plant Care Instructions
Outdoor Size Range
40-100 feet (12-30 meters)
Light Requirements
Full sun to partial shade
Humidity Needs
Average humidity, but can tolerate dry air
Fertilizing Schedule
Fertilize in early spring with a balanced fertilizer
Pruning Guidelines
Prune in late winter or early spring to shape the tree and remove any dead or diseased branches
Common Pests and Diseases
Aphids, scale insects, and borers can be a problem for this tree
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
Regular watering, but can tolerate drought once established
Temperature Range
Hardy in USDA zones 3-9, can tolerate a wide range of temperatures
Growing Season
Spring and summer
Growing Difficulty Level
Easy to grow
USDA Hardiness Zones
3-9
Did You Know?
The Red maple is the state tree of Rhode Island.
