Gardeners could be slapped with a hefty fine for this tree planting mistake

Lawn with tree planted in a circular bed beside a green painted wall with climbers. Garden redesign of a small city garden in London, owned by Rosie Money-Coutts.

You might assume that the biggest tree planting mistake would be popping it in the wrong pH soil, or forgetting to mulch, or getting confused between pruning and cutting back.

Here's the thing, though; while all of those aren't good for your tree, there's one error you can make that will stir up drama between you and your neighbours – not to mention potentially cost you a hefty fine in the process.