Mulch will act as a natural weed-barrier. Roll-out weed barriers, which are also called landscaping fabric, starve the tree of oxygen and compact the soil underneath – you should avoid using them. [2] X Research source

Organic mulches include wood chips, bark, pine needles, leaves, and compost mixes. If you’re unsure of how much mulch you’ll need, type “mulch calculator” into a search engine to find online tools that will help you calculate the amount. See, for instance, https://schneidertree. com/mulch-calculator/.

You can lay mulch up to an 8 feet (2. 4 m) diameter before it stops being useful.

If you use an herbicide, make sure that it’s safe to use around trees.