How to Prune Acacia salicina (Willowleaf Acacia) for Its Weeping Form

About Acacia salicina

Willowleaf acacia (Acacia salicina), native to Australia, thrives in desert regions like Arizona and Nevada (hardy to 22°F). It grows 25 feet tall with a 15-foot spread, prized for its long, weeping branches. Regular pruning maintains this graceful habit.

Three-Step Pruning Process

Step 1: Remove Problem Wood

Cut out dead, diseased, or crossing branches at the trunk using sharp, appropriately sized shears. Make clean cuts at the branch collar.

Step 2: Thin the Canopy for Weeping Effect

Remove approximately one-quarter of canopy branches to enhance the weeping appearance and reduce wind resistance. Cut each branch at a junction with another branch—never leave stubs.

Step 3: Seal Cuts

Brush pruning sealant on all cuts to protect against pathogens and moisture loss, especially important in arid climates.

Prune in late winter or early spring before new growth emerges. With minimal but precise cuts, willowleaf acacia retains its elegant, fountain-like silhouette year after year.