How to Make Your Own Potting Soil | DIY Potting Mix | The ...
1 bucket (10 quarts) coconut coir. ½ bucket (5 quarts) perlite. ½ bucket (5 quarts) vermiculite. ½ bucket (5 quarts) screened compost or composted cow manure. 2 cups fine sand. 2 cups pelleted time-release fertilizer. Instructions. Mix thoroughly. Makes enough to fill two 14-inch tubs or five 12-inch hanging baskets.