Lumpy Yard

Question

My yard is very lumpy, like walking on rocks. The soil is sandy and I have night crawlers. I roll the lawn a couple times a year but the mounds come back shortly after that. How can I keep the yard smooth longer?

Answer 1

This article should help: https://www.gardeningknowhow.com/lawn-care/lgen/worm-casting-mounds.htm