Rosy Glow Barberry takes to pruning and shearing very well, to either promote good color or maintain a manageable size. Pruning should be done while dormant, in either late winter or VERY early spring before any growth begins. You may hard prune it down to about 12” every few years, which will produce a lot of regrowth and a very dense plant. If you prefer a more open and natural form, simply remove up to one third of the branches down to the ground each year or two. By thinning rather than shearing you will have an 3 foot tall and wide, elegant mound of gorgeous deep red foliage. Or shear as needed to maintain size, or every 4-6 weeks to produce new colorful growth. Eventually your Rosy Glow Barberry will develop thick central branches that become trunk-like, particularly if you are not pruning hard every year. Growth will be dense to the ground. Maintenance pruning is generally necessary as twigs develop up the length of the bared trunks. If there are too many main trunks, a few may be pruned out completely depending on the form you desire. Pruning has been described as a “combination of art and science.” I find pruning to be one of the most relaxing yet rewarding chores in the garden. Pruning a specific plant to look a specific way, involves art in creating a unique definition for a specific plant, and it involves science in understanding the physical growing habits of the plant to be pruned. The most important reason for pruning Rosy Glow Barberry is to improve the overall health of the plant which in turn will reward you with a brilliant display of tri colored foliage. Many times, Rosy Glow Barberry that have not been pruned in a few years will develop dead or degenerative twigs. Removing the dead and dying limbs will minimize the possibility of diseases such as “die-back” and will also allow the plant to re-concentrate its energies and produce flowers. Another reason for pruning Rosy Glow Barberry such as many times, a plant may outgrow its intended size in the landscape, and must be pruned to re-define its purpose. Pruning should always be associated with re-invigorating a plant by allowing it to focus its energies on producing more vigorous branches, foliage, and flowers. Specific plant objectives require specific pruning techniques. If an Rosy Glow Barberry is being trained as a hedge , it would need to be pruned differently than if it were being grown as a shrub form. Screenings and hedges of barberries would need to be pruned for their specific purpose within the landscape. It is also important to understand the specific growing characteristic of a certain barberries when pruning that particular plant. It is important to always use sharp tools when pruning Rosy Glow Barberry or any plant for that matter. Knives, hand cutters, saws, and shears should be sharpened if necessary before pruning any plant. A sharp cut will heal quicker than a jagged cut, which will also minimize the likelihood of disease investing a cut during pruning. It is generally recommended by me to not use power equipment such as gas hedgers to prune plants. Pruning large Rosy Glow Barberry may be minor or major. Its general purpose is to maintain or restore vigor to the plant. Large Rosy Glow Barberry that have been severely pruned have the advantage of a large root system that has excessive capacity, and its roots are capable of supplying all of its energies to a smaller number of branches and foliage. This enables the plant to increase its vigor, and become healthier. Pruning large barberries that are well established will enable the plant to have continued vigor, and lead to many more years of supplying beauty to the landscape.