
Small mess but constant: papery bark peeling year-round, catkins in spring, chronic twig and small-branch dieback that sheds readily, and small leaves that drop early — river birch is often bare weeks before the maples on the same street. Aphids can drip honeydew onto cars and patios in early summer, which produces sooty mold on whatever is parked underneath.
Landscape references vary a lot — Morton Arboretum lists 30 to 40 feet tall by 20 to 30 wide for typical landscape trees, while UW-Madison extension puts a well-sited tree at 60 to 80 feet by 40 wide — with a lifespan around 50 to 75 years, short for a shade tree. It sits in the small-to-mid removal bracket by height, but the three-stem clump form means three separate takedowns off one root plate, so quotes run higher than the height alone suggests.