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The best way is to start controlling tree height long before it grows too large, via careful pruning through the years. But that’s not always possible. If a tree has become too high or too large, use selective pruning to remove the most troublesome branches, one by one, without topping the tree. Gently shaping a tree like this can, over time, correct problems. You can also find growth inhibitors to spray on a tree to stop it from growing too rapidly, but use these sparingly if at all.

Yes, cutting a tree's roots can cause it to fall, particularly if major support roots are severed. In extreme cases, trimming roots can affect the tree's structure and stability. Many crucial roots are located just below the soil's surface. If you make severe cuts to roots more than 2 inches in diameter, you risk impacting the tree's water flow and its ability to withstand severe winds or storms. Even cutting roots less than half an inch in diameter under or outside the tree's canopy can cut off its water supply, causing it to decline, die, and eventually topple.

A tree can grow back from its stump, but full regrowth is unlikely (especially for more stubborn conifer trees). Instead, trees are more likely to send up a number of shoots from the dead stump, which will try to develop into primary stems over time. In other words, it will start to look increasingly bushy. The goal of killing and drying out a tree stump is to prevent that from happening, as well as make the stump easier to completely remove.

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.