@California Gardening California Gardening: Coco Coir + Chips Based Potting Mix – Does It Work? September 21, 2019
@Epic Gardening Epic Gardening: How To Make The Best Seed Starting Mix and Potting Soil February 8, 2018
@California Gardening California Gardening: Coconut Coir Potting Mix Recipe – Coir, Compost, Perlite or Vermiculite December 13, 2014