It’s possible to over-mulch leaves. If the leaf mulch is thick enough that it’s blocking and smothering the grass, that’s a problem. Ideally, you should still be able to see the grass when you’re done mulching to ensure its ability to continue growing. The solution is to make another pass at the top layer of leaf mulch to collect some of the top layer.

Mature lilac bushes that are large and overgrown are more challenging to remove than small lilac bushes. Large lilac bushes have deeper roots that are more widespread, making it harder to dig them up and remove them. If you don’t dig under and around the primary roots, then you run the risk of the lilac bush growing back. So, it is a time-consuming process if done correctly. 

Yes, many pros leave clippings, as they break down quickly, enhancing your lawn’s nutrient profile without extra effort from you.

Leaf removal isn’t always necessary, and what you should do with leaves in your yard depends on the number of trees you have. Leaving a small amount of leaves to decompose on your property can add nutrients to the soil and help grass, plants, and trees thrive. However, large accumulations of leaves can promote mold and fungal growth, so you should do at least two fall cleanups if you have many trees on your property.