Hobby Farms What Kind Of Potting Mix Does Your Farm Need? The type of potting mix you use is critical to the health of your seedlings, so it’s worth making sure that your mix is a good fit for your plants. 258 views PHOTO: VTT Studio/Shutterstock Most experienced vegetable farmers will tell you that one of the secrets to growing healthy plants is to start with healthy seedlings. And, one of the key ingredients to growing healthy seedlings is choosing the right potting mix. Here’s a quick overview of some of things to consider when you’re selecting a potting mix for your farm or homestead.