How to Prune a Holly Tree

The holly tree remains an all-time favorite for many home landscapes. It does not require much maintenance once mature which adds to its appeal. However, regular pruning is essential to encourage new growth and help retain its shape. Pruning also encourages production of new berries which is important for young hollies. When young, the tree is shaped like a pyramid, but as it grows it opens up and becomes irregular in shape. Holly trees tend to be dormant in winter which makes December a good time for pruning. You can also prune lightly in the early summer as it will allow time for new shoots to develop. However, if you prune too heavily or after flowering, this will hinder production of new berries. Following is an easy-to-follow guide on how you can prune your holly tree.

Step 1 - Dress

When trimming hollies, it is a good idea to put on gloves and safety goggles. This will protect you from injury by the prickly holly leaves and possible plant parts flying around as you prune.

Step 2 - Inspect the Tree

Carefully inspect the tree for any indications of insect infestation or diseased parts. Also take note of areas of the tree that are damaged. Pay particular attention to the trunk. Wounds that appear on the tree are most likely to represent some disease. If the tree is considerably infested or diseased it is a good idea to cut it down and extract the entire tree. Mild areas of infestation can be treated with an appropriate pesticide.

Step 3 - Prune Lowermost Branches

It is best to begin pruning at the bottom and work your way upwards. Begin with the lowermost branches at ground level and cut them off as far back as the trunk. Some branches may even emerge from just beneath the ground level. Cut off all branches that grow within 5 feet of the ground.

Step 4 - Prune Downward and Upward Growing Branches

Trim off branches that are growing downwards as well as upwards. Also trim off branches that appear awkward in the angle they take or seem to be an obstruction to other branches. Use a ladder to reach the higher parts if the tree is tall.

Step 5 - Prune Damaged Branches

Cut off all branches that are bent or damaged. Also get rid of branches that appear weak.

Step 6 - Work the Middle Section

Use a ladder to step up to the middle section of the tree so that it is at eye-level. Usually, the most dense growth occurs in the middle. Trim off dense growth and branches that seem to be in the way. This will encourage better air circulation and reception of sunlight which is vital for healthy growth.

Tips

• Do not prune branches until you cut back into the stem. It will hinder new growth from emerging.
• When shaping hollies, avoid cutting branches at the bottom shorter than the top branches. When lower branches fail to get adequate sunlight it can result in eventual death.
• Do not cut branches right back into the trunk. It will hinder new branches from growing.