Gem and Stones

This list of stones (Full List can be found in GPO Book) can be mixed to match the needs of each plant, like how cannabis is composed of minerals Also stones and gems can be mixed into other mediums


Air, water, and light; you get those from the environment in which you grow your plants. But of course, there are many hugely important nutrients in the soil you’re using to grow your cannabis. Of the roughly 16 essential nutrients that support virtually every plant in existence, there are three that are the most important. Your plants need these three nutrients in larger quantities than the rest. Nitrogen (N), Phosphorus (P), and Potassium (K). N-P-K. As a rule, go strong on the phosphorus and potassium, and not as much on the nitrogen, you will have an overall healthy cannabis plant.




Nitrogen (N)

If your soil is nutrient-deficient, it’s likely nitrogen. Cannabis uses nitrogen to develop. Nitrogen forms the building blocks for the plant’s proteins, its chlorophyll, its enzymes, basically everything that makes the plant function. Nitrogen helps cannabis create  cannabinoids.  You end up overfeeding the nutrient to your plants, and that will slow its root growth and its flowering. Nitrogen makes your plants “mature,” and you don’t want them to grow up too fast.

Phosphorus (P)

Phosphorus is what makes it flower. It’s what brings the bloom phase. Phosphorus helps the plant produce the enzymes and nucleic acids that go into flowers. If your plants reach maturity with low phosphorus, you’ll see smaller flowers and end up with less product. Phosphorus deficiency is what turns cannabis plants purple, a buildup of anthocyanins.


Potassium (K)

Potassium is the nutrient that gives your plants their strength. It accounts for around one percent of the total dry weight of cannabis plants. Your plants need potassium to breathe and make proteins. They also need it to keep up the internal pressure that helps your plants stand tall and strong. Deficiencies in this important nutrient will reveal itself through dead spots on leaves, flimsy stalks, and problems falling over. Low K also leaves the roots more vulnerable to disease.



Plants need calcium for a different reason., Most of the calcium in cannabis plants is used for defense. The calcium acts as a shield against other toxic elements that can poison and kill your plants. There are lots of toxins in the soil with similar structures to calcium that try to imitate it. Calcium deficiency will make the leaves of your plants twist up and deformed. So, use dolomite limestone and other calcium-based stones to make sure your soil is well supplied with calcium before you plant.


Even though it never stays around in the final product, Sulfur is essential for healthy cannabis plants. All the proteins made by the cannabis plant are built of two indispensable amino acids. Sulfur is a very common soil pollutant, too much will kill the plant’s chlorophyll, which it needs to turn light into food. Calcium protects the plants from the excess sulfur. Cannabis plants can benefit from it at key stages in the grow process.

Important Micronutrients for Healthy Cannabis Plants

The above nutrients are what makeup virtually all the tissue of your cannabis plants. But there’s still 0.5 percent of that tissue which is composed of “micronutrients” found in soil.


They are:

  • Iron
  • Molybdenum
  • Zinc
  • Manganese
  • Chlorine
  • Magnesium
  • Copper
  • Boron

like iron and boron. All these metal nutrients are toxic at anything higher than trace levels, and your plants don’t need more than very small amounts. It’s likely you have too many of them in your soil than too little. Signs that you have too much of these elements include yellowing, dead, or deformed leaves. If you think you may have too little of these trace nutrients. Add some chelating agents to your soil. These convert the metals into soluble versions (called “salts,” FYI) that roots can absorb.


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