• Michelle Roberts, host of the Growing the Good Life podcast, recently ran out of seed starting mix and was astounded at the inflated price.
• She created her DIY seed starting mix recipe consisting of two parts peat moss, one part composted leaf mulch, one part perlite, and a quarter part Biotone Starter Plus fertilizer.
• The ingredients are easy to source from stores such as Lowe's, Home Depot, and Amazon.
• The cost of making this mix is much lower than buying a bale of pre-made potting soil or seed starting mix.
• Adding this granular fertilizer helps increase the number of mycorrhizal fungi in the mix without purchasing it separately.