Yes, tree roots can regenerate after they’re pruned or cut. In fact, trimming can stimulate new growth, especially in healthy trees. The tree’s roots can still grow back even after a tree is cut down, (and learning how to get rid of regrowing tree roots is a separate feat). Still, if you don’t wish to harm a tree, pruning the roots should be done with extreme care, and ideally by a professional.

Generally, homeowners do not need permission to cut down a tree on their own private property, but there are several exceptions where a permit may be required. You might need a permit if the tree is particularly large, old, or a protected species, such as a heritage tree. Trees located near public property or power lines can also be subject to special rules. Additionally, many local governments and homeowners associations (HOAs) have regulations controlling which trees can be removed to manage an area's appearance or prevent the spread of invasive species. To avoid hefty fines, it is crucial to check with your local government and HOA to determine if a permit is needed before you begin.

In most ways, palm trees are incredibly low-maintenance. They don’t need a ton of water—which is why they’re so beloved in desert regions—and they basically prune themselves. But they do need an ample supply of sunlight and to be in soil that will allow for proper drainage so that their roots don’t become waterlogged and at risk of developing illnesses.

If the plant begins to wilt, develop spots, or change color, these could all be signs that your palm tree has a disease. But a few basic treatments, like pruning and applying fungicide, will usually be more than enough to return it to perfect health.

If you don’t cut down a dead, dying, or diseased tree, it can become a nesting place for pests like mosquitos, bees, beetles, wasps, fly larvae, and more. Some pests will live in the tree, while others will feed off the decaying wood. Unhealthy trees are also more likely to fall over, potentially injuring people and causing damage to your property.