Not all leaning trees are dangerous, but they can be a hazard as gravity may eventually cause them to fall. A key factor is whether the lean is new or has been present for a long time. Trees that have grown with a lean for years are not typically an immediate danger, but a sudden lean is a cause for concern as it often indicates weakening roots. If a tree is leaning more than 15% from vertical, you should consider having it straightened or transplanted. To be safe, it's always best to hire a professional arborist to inspect any leaning tree to assess the risk and avoid potential accidents.

It’s not always easy to tell when a tree is dying, although signs like dropping branches and brittle bark can sometimes offer clues. It can also be difficult to know whether a tree is dead or dormant, especially if it’s a deciduous tree. You’ll want to wait until a growth season to get a good idea of a tree’s health. When in doubt, contact an arborist for a consultation.

The best time to transplant a tree is when it is dormant. For many trees, this means either in the fall after the leaves have dropped (around October or November) or in early spring before new growth begins (around March). The ideal timing can depend on the type of tree. Deciduous trees do well when moved in early spring or fall, while evergreens are best transplanted in early spring or late summer. For example, pine trees are best moved in early fall, but maples prefer late fall. Avoid transplanting in winter, as the frozen or hard, cold soil poses a significant risk to the roots and prevents the tree from acclimating properly.

If you’re planning on keeping the tree, unless the roots are invasive, there’s no need to remove them, as doing so can cause damage to the tree. If the tree has been cut down and the stump and roots are left, grinding and removing the stump can cause root decay for some species. For other species, the stump and roots will need to be removed to prevent pests, disease, and possible tree regrowth.