Q.Potting Soil Mix
What is the best soil mix I can make on my own other than buy premix ones. I am going to grow Avocado tree, berries and other vegetables in pots. It is hard for me to find dark black soils near me. Thank you so much!

Certified GKH Gardening Expert
There are various ways to go about this! I will include several articles that will help you to get started:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/improving-garden-soil.htm
https://www.gardeningknowhow.com/special/organic/the-importance-of-soil-for-an-organic-garden.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/compost-as-soil-amendment.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/types-of-potting-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soilless-growing-mediums.htm