Marin UC Master Gardener Program Pruning Pruning & Training Scientific Name:Acer circinatumPrized forLeaf detail and graceful structure.Blooms onNew woodWhen to PruneWinter or very early spring (Ideal: February).What to PruneUse thinning cuts to reveal the structure. Pluck leaves in dense areas. > BACK TO PRUNING TIPS FOR NATIVE PLANTS