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Cutting or mowing tree of heaven can prompt new shoots to emerge from its roots, potentially increasing the number of stems. Country Living’s removal guide recommends confirming the tree’s identity, choosing a control method based on its size, following herbicide labels where applicable and monitoring the site for regrowth.
Tree of heaven can produce new shoots from its roots after it is cut or mowed, so those methods may make an infestation harder to control, according to a removal guide published by Country Living. The report recommends first confirming the tree’s identity, then selecting a control method based on its size and monitoring the site for regrowth.
The tree is often confused with native sumac and black walnut, making identification a necessary first step. Country Living describes tree of heaven as having compound leaves 1 to 4 feet long, with mostly smooth-edged leaflets and one to four small teeth near the base. A gland sits beneath each tooth. The guide says sumac and walnut have serrated leaflets and lack that tooth-and-gland pattern. Crushed or broken tree of heaven leaves and branches may also give off a foul odor.
The report advises against simply cutting or mowing established plants. Such damage can lead the root system to send up root suckers, or new shoots, and cutting may increase the number of visible trees over time. For very small seedlings, hand-pulling is an option only when the entire root can be removed; moist soil may help. The guide cautions against pulling root suckers, which can break and leave root fragments behind.
For larger plants, the guide describes herbicide methods: foliar application for larger seedlings or small trees up to 10 feet tall; basal-bark treatment for trunks up to 6 inches in diameter; and hack-and-squirt treatment for larger trees. These approaches involve applying herbicide to foliage, bark or cuts in the trunk so it can move toward the roots. Use only products labeled for the tree and chosen method, and follow label directions for protective equipment, mixing, weather and permitted use sites. Keep spray away from desirable plants and check local rules.
Why Cutting Can Trigger More Growth
Tree of heaven can compete with native plants and is identified in the report as a preferred host for spotted lanternfly, an invasive insect. That makes control relevant beyond the appearance of a single yard: an unmanaged or expanding stand can affect nearby vegetation and add to local invasive-species concerns.
The practical risk is that an easy-looking removal method may not address the root system. The guide’s central point is to match treatment to plant size and keep checking the area afterward. One treatment may only weaken an established root system, so visible removal should not be taken as proof that the tree is gone.
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Identification Before Treatment
The supplied Country Living report presents a size-based approach rather than a single removal technique. That distinction matters because the guide treats tiny seedlings differently from root-connected shoots and larger trees. A plant that looks like a young seedling may be a sucker attached to an extensive root system, where pulling could leave material behind.
Timing is also part of the guidance. The report says to pull seedlings when soil is moist, while herbicide applications are described as most effective from mid- to late summer until fall color begins, when the tree is moving carbohydrates toward its roots. It advises holding off if the tree is in flower, which generally occurs in spring or early summer. Local conditions and product labels still govern treatment decisions.
“Cutting or mowing can cause the tree to send up root suckers: new shoots that emerge from the root system.”
— Country Living removal guide
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What Depends on Site Conditions
The guide does not establish which method is right for every property. The suitable approach depends on correct identification, tree size, access, nearby plants and local rules. It also does not provide a product recommendation that applies across locations; herbicide labels and permitted uses vary, so readers should not assume that any product or application method is suitable.
The report says repeated treatment may be needed but does not specify a universal number of applications or a fixed monitoring period. How much regrowth occurs and how quickly a particular tree can be controlled remain site-specific. Where a tree is near a home, power lines or valuable landscaping, or where the infestation covers a wide area, the guide recommends professional help.
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Monitor Regrowth and Seek Help
After treatment, check the area regularly for new shoots and continue control as needed. The report says to judge success by whether the root system stops producing growth, not merely by whether the original trunk or top growth disappears. Any herbicide use should follow the product label, including required protective equipment and restrictions on weather, location and application.
For large trees near structures or utility lines, or for widespread infestations, contact an arborist or invasive-plant specialist. A local cooperative extension can also help with identification and label questions. The next practical step is therefore to confirm what is growing, assess its size and setting, and select a label-compliant plan that includes follow-up monitoring.
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Key Questions
Why shouldn’t I cut down tree of heaven?
According to the Country Living guide, cutting or mowing can prompt the roots to send up new shoots. That can leave more stems to control rather than eliminating the root system.
How can I tell tree of heaven from sumac or walnut?
The guide points to mostly smooth-edged leaflets with small teeth and a gland near the base. Sumac and walnut have serrated leaflets and lack that tooth-and-gland feature. Confirm identification before treatment.
When is herbicide treatment recommended?
The report says applications are generally most effective from mid- to late summer until fall color begins. Follow the product label for the specific treatment, protective equipment and permitted conditions; local rules also apply.
Can I pull up every small shoot?
Hand-pulling is recommended only for very small seedlings when the entire root system can be removed, preferably with moist soil. The guide warns that root suckers may break off and leave root fragments behind.
When should I call a professional?
Contact an arborist or invasive-plant specialist if a large tree is near a home, power lines or valuable landscaping, or if the infestation covers a wide area.
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