Mulch volcanoes are not natural
Some steps you can take to prevent weeds from taking over your lawn in spring
Corn gluten has not proven to be a very effective pre-emergent and requires several years of application to build up effectiveness. Then it becomes a problem if you need to overseed your turf. It also releases nitrogen, which makes it a fertilizer and must be counted in your fertilizer quota for the year. Applied at labeled rates, it can exceed the amount of nitrogen permitted in Maryland. A simple approach to weed prevention is to use thick turf to crowd out weeds and shade out weed seed germination. 1. Mow high. 2. Never mow during drought. 3. Fertilize every year in the fall. 4. You can also do a soil test every three to four years and adjust pH with lime if needed. 5. Overseed in early fall when necessary.
Mulch volcanoes, with the mulch being the volcano and the tree being a vertical column of lava, are not what nature intended.