- 1 block of coconut coir (makes 2 gallons)
- 12 cups of water
- 2 cups perlite
- 2 cups vermiculite
- 1 cup worm castings
- 1/4 cup horticultural hydrated lime
- Add coconut coir and lime to a 5 gallon bucket
- Bring 12 cups of water to a boil
- Pour boiling water over coconut coir and lime
- Cover bucket with lid and let sit overnight
- After sitting, add the perlite vermiculite and worm castings. Mix.