How to prune acer rubrum 'october glory'

Late summer (July–August) or late autumn after leaf-fall. Remove dead or crossing branches back to the branch collar with clean, sharp cuts. Do not leave stubs and do not apply wound paint — research shows it impedes rather than helps callus formation. In the first 3 years, select well-spaced scaffold branches and remove any tight, V-shaped crotches.

Rarely; formative pruning for 2–3 years, then as needed. Acer rubrum 'October Glory' (red maple) needs minimal pruning once established. It develops a naturally well-structured crown. Prune only to remove dead, damaged, crossing, or rubbing branches. Avoid pruning in late winter or early spring when maples bleed sap heavily — summer or late autumn is preferable. Never top or heavily reduce this tree.

Remove dead or crossing branches back to the branch collar with clean, sharp cuts. Do not leave stubs and do not apply wound paint — research shows it impedes rather than helps callus formation. In the first 3 years, select well-spaced scaffold branches and remove any tight, V-shaped crotches.