How Much Compost to Mix with Soil

How Much Compost to Mix with Soil

Knowing the right amount of compost to mix into your soil will be more favorable to you as a gardener. In this article, I’ll suggest the quantity of compost needed to mix with soil, how to mix compost with soil, and the best compost for your garden.

To prepare your garden, you must first mix compost with the soil. Supplying organic matter, such as compost, has several advantages, including improving the soil’s ability to hold water, reducing compaction, regulating soil temperature, encouraging the growth of beneficial organisms, and adding nutrients.

It’s among the most cost-effective ways to supplement your garden’s organic material. Adding the correct quantity of compost to your soil, whether you prepare it at home or buy it from a garden center, helps to create the optimal environment for your new garden to thrive.

How Much Compost to Mix with Soil

2 inches of compost should be added to the top 6 inches of soil in general. You may need to add extra in some circumstances, but this will depend on the sort of soil you have and how fertile it is.

Recommended: learn about vermicomposting

How To Mix Compost With Soil

The following are various steps taken on how you can mix compost with the soil.

  1. You can either buy compost or use what you’ve already composted at home.
  2. One part composted manure, one part shredded bark or soil conditioner, and three parts garden compost is one combination advised by the Clemson University Cooperative Extension Service.
  3. Start by mixing 2 inches of compost into the top 6 inches of soil when mixing compost with soil for the first time.
  4. If necessary to rectify soil texture or as advised by your soil test, apply more compost, but no more than 4 inches, suggests Texas A&M AgriLife Extension.
  5. Using a tiller or a garden spade, work it into the soil. It’s important not to over-till, as this can break down soil particles and compact the soil.
  6. You can use compost as a top-dressing on already-established plantings. It can also be used as a lawn amendment to help heal barren areas.

Read also: Can You Compost Onions?

Which Compost Is Ideal For Your Garden?

Compost comes in a variety of forms that you can use in your garden. The following are some of them.

Leaf Mulch

According to the Clemson University Cooperative Extension Service, leaf mulch, or the leaves of deciduous trees, is one type of compost that contains various vital elements such as boron, calcium, magnesium, phosphorus, and potassium.

You can add leaf mulch to the soil without decomposing it, but you should wait to plant after adding new organic material to the soil.

Composted manure

This gives nitrogen, phosphorus, and potassium to the soil, but it can also be salty. Mixing it with another form of compost or adding gypsum to the compost can help to reduce the danger of plant root damage. Fresh manure contains pesticides and high levels of ammonium, thus it should not be applied to vegetable plants.

Garden compost

Yard leftovers like leaves, grass clippings, and brushes are used to make garden compost. Only trace amounts of nitrogen, phosphorus, and potassium are found in it. Other items that can be composted in your garden include eggshells, coffee grounds, and fruit and vegetable waste.

Read also: Can You Compost Pineapple?


I hope this article helps you find the right quantity needed to be added on a soil. I would like to hear from you. So, let me know if you have any questions. Also, learn about Vermicompost.