Compost. If you have enough compost, it’s fine to use it as a mulch. It will definitely enrich your soil and make your plants happy, but keep in mind that when any kind of mulch is dry, it’s not a hospitable place for plant roots.Click to see full answer. Similarly, it is asked, can compost be used as mulch?Compost can be used as mulch. Compost can be put on top of the earth and is usually done by no-till gardeners and permculturists. It’s best to make positive that the compost was well made to kill as many of the weed seeds or you will most likely have a garden full of plants you didn’t intend on.Secondly, can compost be used as soil? Growing plants in pure compost can cause problems with water retention and stability as well. When mixed with topsoil, compost works wonders with water, as it allows good drainage through heavy soil while it retains water in sandy soil. Used on its own, however, compost drains quickly and promptly dries out. Beside above, how do you compost mulch? Pile up branches, bark or wood trimmings until you have enough for mulch. And if you’re using a compost pile, simply keep the pile fed until it’s time for mulching. Make sure you keep your pile relatively moist and turn it regularly with a pitchfork or shovel to keep the materials rotated while they break down.Should I use compost or topsoil?Make lighter, but more frequent, compost applications raked into the top layer of soil. Topsoil is not compost and will not perform like compost. Adding topsoil alone does not ensure soil performance. Some “topsoil” may be almost inert with little to no organic matter or active soil microbes.