Regular pruning encourages hardy rubber tree to grow more vigorously by stimulating new growth. It helps maintain the desired shape and size, ensuring the plant remains aesthetically pleasing and well-proportioned within its landscape setting.

The best time for pruning or trimming hardy rubber tree is in late winter, before the onset of the new growth in early spring. This is because hardy rubber tree is dormant during the winter, making it less likely to experience stress or bleed sap when cut. Pruning in late winter helps to remove any dead or damaged branches that may have occurred from winter weather, reducing the risk of disease. Additionally, by trimming hardy rubber tree before it begins its growth cycle in early spring, the plant can direct more energy to the formation of new shoots and leaves from the remaining buds. This results in a healthier and more robust plant. It is important to avoid pruning hardy rubber tree during its active growth phases in late spring or summer, as this can lead to excessive sap loss and weaken the plant. Likewise, pruning too late in the fall can stimulate new growth that may not harden off before the winter, leading to potential cold damage.