Crown reduction uses selective pruning to reduce a tree’s size while preserving its natural structure, while topping indiscriminately removes large portions of the upper canopy without regard for the tree’s form. The two techniques can produce similar goals on paper, like a smaller tree, but the methods and results are very different.
How Crown Reduction Is Done
Crown reduction relies on selective pruning, where individual branches are cut back to suitable lateral branches that are large enough to continue the growing role for that part of the tree. This method retains the tree’s natural structure and form, since cuts are made with an understanding of how the tree grows and where its branches are positioned. The canopy becomes smaller, but it still looks like it belongs to the tree.
How Topping Is Done
Topping takes a very different approach, cutting large portions of the upper canopy indiscriminately, often at an arbitrary height without regard to where lateral branches are located. This leaves large, flat cuts on major limbs that aren’t sized appropriately to support new growth. The tree’s natural structure and form are essentially ignored in favor of quickly reducing height.
Why the Difference Matters
Topping can leave large cuts that are slow to heal and vulnerable to decay, along with poorly positioned regrowth that often attaches weakly to the tree. This regrowth can actually create more structural risk over time than the tree had before it was topped, since the new branches aren’t as securely attached as the original limbs. Proper pruning, including crown reduction, aims to avoid this kind of unnecessary damage by working with the tree’s structure instead of against it.
Choosing the Right Approach
Topping is not an acceptable substitute for professional crown reduction, even though it might seem like a faster or simpler way to reduce a tree’s size. The long-term consequences for the tree’s health and structure make it a poor choice compared to proper selective pruning. If you’re considering reducing the size of a tree on your Westminster property, reach out about professional crown reduction and we can explain how the process works and what it would look like for your specific tree.
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