• Krista Green

How to Prepare Garden Soil For Planting

Good garden soil is truly the foundation for a successful vegetable garden. Whether you are growing in pots or containers, in a raised bed, or in an in-ground garden, healthy soil is a must for growing healthy vegetable plants. What makes soil healthy? Generally vegetables need well drained soil with a good balance of nitrogen, phosphorus and potash along with other micronutrients and minerals. Let's take a look at a few ways we can prepare our soil for planting vegetables.



Ready to prepare raised bed vegetable garden soil for planting seeds.

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Cold hardy vegetables can be planted as soon as your garden soil is workable. For me in zone 3, just south of Calgary, Alberta, soil tends to be workable sometime in April. Prepare your garden soil for planting once it is no longer frozen and is dry enough to have a crumbly texture.


Recipe for Garden Soil

If you are building a brand new garden, use 1/3 topsoil, 1/3 compost and 1/3 peat moss to create a loose, well drained, healthy soil base for your backyard vegetable garden. If you are growing in pots/containers, use 2/3 high quality soil mix (I like to stick with ProMix or Sunshine Mix - also labelled Sungrow. I also use this mix to start my indoor plants.) and 1/3 compost. This soil mix already contains peat moss so there is no need to add that.

This is the potting soil I have been using the last few years.

Test Your Soil

I highly recommend testing your garden soil to see what the quality of your soil is. Look for a test kit that tests pH, nitrogen, phosphorus and potash levels. Testing soil each spring and fall allows you to see if the amendments you are making are improving the quality of the soil. Inexpensive test kits can be purchased at most hardware stores that carry garden supplies. Most vegetables prefer slightly acidic soil with a pH of around 6.5. Read more about amending garden soil here.


Remove Weeds

If weeds have begun to grow in your garden area, you want to remove those prior to planting.


Add Compost

Good compost is packed full of nutritional value for your plants. I like to add compost to my garden both in the spring and the fall. High quality compost should have gotten to a high enough heat that it no longer contains any live weed seeds. Compost contains enough nutrients for most vegetables that don't blossom to produce, no other fertilizer is needed. Fruit and vegetables such as tomatoes, peppers and squash can benefit from added fertilizer.


Adding compost is a perfect way of preparing garden soil for planting vegetables.

Loosen the Soil