When to Trim a Holly Bush
Hollies (Ilex spp.) are deciduous and evergreen plants that come in hundreds of different varieties and species, cites the University of California Extension. Hollies grow as shrubs or trees with sizes ranging from 1-foot tall dwarf varieties to the 50-foot tall trees. Certain hollies are classified as invasive weeds. The plants require regular trimming or pruning at the right time to maintain health and appearance. Does this Spark an idea?
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Trimming Time
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The best time to perform yearly pruning and trimming on hollies is during late winter or early spring, recommends the University of Rhode Island Extension. If the plants have any dead, diseased or broken branches, these remove these at any time of the year. There is no need for severe pruning if the holly is pruned on an annual basis. Avoid pruning in late summer or early fall, as this encourages the plant to produce new, succulent growth that becomes susceptible to cold damage.
Trimming Method
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When pruning hollies, make the cut to retain the natural form of the shrub or tree. Make the cut at a node located just above a lateral bud. Avoid cutting too far into old wood because it will not produce new growth readily, leaving bare stems. Generally, American holly is tolerant of heavy pruning, which is why it works well as cut foliage for indoor use at Christmas time. On a relative note, Japanese holly varieties do not require excessive pruning.
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Pruning Tools
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Use proper and sharp pruning tools for minimal damage to the plants. The most important pruning tool is the hand shears that easily cut branches up to ¾ inch in diameter. Avoid using hand shears on larger stems, as the possible twisting will harm and weaken branches. For ¾ to 1 ½ inch diameter branches, use the lopping shears. For branches with diameter of over 1 ½ inches, use pruning saws.
Pruning Tips
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Young holly plants need little pruning to stay in shape, as they naturally have a compact, tight form. If the holly is grown as a hedge, perform an annual pruning to give it the required shape and to keep to desired size. For taller hedges, do not prune the plant until it reaches the desired height. This can take up to a few years.
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References
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