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Make Your Own Optimal Potting Soil Mix For Cannabis

In this article, we will discuss an optimal potting soil mix that provides excellent drainage and is rich in nutrients. This mix is suitable for various plants and will not burn delicate seedlings. The ingredients used are readily available, and by following the instructions, you can create a high-quality soil mix for your plants.

Ingredients for the Potting Soil Mix​

  • 1 bushel sharp sand
  • 1 bushel clay loam
  • 1 bushel pro-mix or a balanced compost
  • 3 cups Epsom salt
  • 3 cups coffee grounds
  • 3 dozen eggshells

Choosing the Right Components​

Ensure that the pro-mix or compost you use has enough organic content for proper drainage. While perlite and vermiculite improve drainage, they do not contribute to the organic content. Instead, consider using peat moss or coconut fibers. Worm castings and bat guano are nutrient-rich but do not help with drainage. Making your homemade compost is the best option.

The sharp sand might be heavy for containers, but it helps reproduce an optimal soil based on good soil's average content. This mix is designed to provide long-term benefits without harming delicate plants.

Monitoring pH Levels​

Remember to keep an eye on the pH levels and make any necessary adjustments. Reusing coffee grounds is a great way to get more value out of your purchase while benefiting your plants.

Bringing the Soil to Life​

Before planting, activate the soil by watering it with a 20-gallon solution made from the following ingredients:

  • 1 can of beer (for enzymes)
  • 1 cup of soap (for wetting the soil)
  • 1 cup of mouthwash (to protect seedlings from damping-off)
  • 1 teaspoon of instant tea powder
  • 1/2 cup of corn syrup
  • 1 tablespoon of B1
Adding a few dashes of hydrogen peroxide to the solution will help eliminate chlorine from tap water.

With this optimal potting soil mix and activation solution, you can ensure that your plants have the best possible environment for growth and development.
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