Every grower of various plants and agricultural products will need to consider the growing medium that they use for their seeds. Marijuana cultivation is no exception. With so many factors that affect the growth and coming yield of cannabis plants, it is important to understand where you first place your seeds in. Now, the most common form of growing medium is soil. It is not uncommon for marijuana growers to choose soil over other types of growing mediums. This is because soil offers so many benefits which we will discuss later on in this article.

With so many different options to choose from, picking the right soil for your cannabis garden may prove to be quite difficult. All kinds and varieties of soil will have various levels of pH, different nutrients, and many more. The most important thing is putting in the time and effort into knowing and understanding how you want the growing medium to be.


One would think that since there are a number of options to choose from as a growing medium, soil isn’t all that special anymore. However, this is far from the truth. Soil offers a lot more to your cannabis plants than others would think. It is highly regarded as an essential aspect of cultivation not only for cannabis plants but for other agricultural products as well. If you attempt cultivating your cannabis seeds in another system aside from soil during your first growing experience, chances are you will not succeed. Like, at all. So, aside from being beginner-friendly, it also provides experienced growers with a constant source of growing medium. Being the most common type of method for planting, soil is abundantly sold and even found anywhere you are. Additionally, it is extremely easy to set up and center your growing area on a soil-based growing system.


In order to really grasp the idea of soil, you should first know what is in it. It gets rather complicated knowing that all of these factors have a subtle effect on the growth of your cannabis seeds. Here are the things that you can particularly find in a mixture of soil:

The first one is, of course, water. Nearly a fourth of the composition of soil is made up purely of water. The abundance of this makes it the ideal growing medium for cannabis plants. Additionally, the water found in soil already contains certain minerals and chemicals such as salts and alkaline.

Next up, we have fertilizers. It is extremely rare to find a soil solution that does not contain at least some fertilizer. This is the result of dried up leaves, animal manure, decomposing organisms, and leftover roots and organisms from other plants. These prove to be very healthy and beneficial for cannabis plants. They are natural resources that plants can make use of.

Soil composition also includes clay and sand. These are usually small fragments of dried up rocks and wet compost. Clay helps fertilize the plants with nutrients such as Calcium, Potassium, and Iron. However, too much of this will thicken the soil, making it hard for water and nutrients to spread out. Sand, on the other hand, gives the soil a certain dryness and looseness that helps the filtration of water and minerals.

Lastly, oxygen is found in soil in the form of air. Around 25% of soil is composed of trapped air. This gives the soil air circulation and much needed amounts of oxygen.


The type of soil that you will use depends mostly upon the phase of life that your cannabis seed is currently in. Let us break it down into two simple phases:

  1. After your cannabis seeds germinate, the best growing medium to use is a “starting soil.” An example of this is growing pellets or potting soils. These are ideal for newly sprouted plants because they do not contain any minerals that might interfere with the development process of the plants. Using these soils will last for up to a few weeks. During this time, the soil will have all of the necessary nutrients that newly sprouted marijuana seeds will need. You see, these are specifically designed to provide “growing nutrients” to cannabis plants.
  2. After a few weeks, your cannabis plants will start shifting its focus less of development and more on sprouting potent marijuana buds. Also, the roots of your cannabis plants will start to grow. They will require a larger space so repotting is a must. As such, it will require a much different soil solution. We recommend using “living soil.” Basically, this is natural, earthy soil mixed with combined nutrients to help cannabis plants produce better marijuana buds.

This soil should be mixed with a nutrient solution of at least 20%. Nutrient solutions such as coco coir, perlite, animal manure, and worm castings work brilliantly. This feeds the soil enough nutrients to help it speed up the maturing process.


Healthy and rich soil will have some observable characteristics. When buying your own gardening soil, the appearance should tip you off as to whether it is good or bad soil. Healthy soil will usually be dark in color. It will have a pure, earthy feeling that is somewhat puffy. The density and moisture level of healthy soil is something you can definitely judge based on feel. Soil that is too loose or too heavy may be unhealthy for your cannabis seeds.

Also, try tilling your soil before introducing your seeds straight in. Make sure you remove any tiny rocks and debris to keep the growing area clean. While this makes it pleasant to look at, it also avoids any diseases and molds from forming in your cannabis garden.

Knowing your soil is definitely a key aspect of cannabis growing. You should always take the time to see how your soil will affect the cannabis seeds during the cultivation process. A few extra steps of this will guarantee you fresh and potent marijuana buds all the time. Happy growing!