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Cannabis Soil: Home Grower’s Approach to Choosing the Best Soil

cannabis soil

Growing your cannabis by yourself is an excellent way to get the best returns on your crop. You are free to carry out new experiments that allow you to optimize your yield and flavors, amongst other things.

However, it is crucial you employ the right techniques. This is to ensure that your weed turns out as exactly as you want or better. And, one of the most vital of those techniques is selecting the best cannabis soil.

Several important factors go into choosing the best marijuana soil. These include its type, characteristics, and so on. In this article, we have discussed each of these factors in detail. Before we get to them, let us examine the characteristics of the earth that will be best for growing weed.

Characteristics of quality cannabis soil

  1. pH value

The cannabis plant needs medium-level pH concentration to survive. Ideally, the soil pH level should be between 5.7 to 6.3.

  1. Drainage

The best type of earth for cannabis is one with high drainage ability. If the plant experiences consistent water pools above its soil surface, it will die.

  1. Water retention

The finest cannabis soil is the one with a balance between excellent drainage and water retention ability. It should provide enough water for the plant to grow without flooding it.

  1. Texture

Excellent soil for growing weed must have a light and loose texture. This allows for proper root growth and overall health as there’s adequate soil penetration.

  1. Nutrient capacity

Quality cannabis soil needs to be rich in organic compounds such as guano, worm castings, etc. This is because the plant needs a high quantity of nutrients to attain optimum yield.

Types of soils available for cannabis

There are four naturally existing soil types that can be used in planting cannabis. They have varying degrees of suitability for the plant.

So, here we highlight the traits of those soils to identify which is best for cannabis.

  1. Silt soil

Silt is a fairly-coarse soil type. It has high levels of organic particles and mineral composition. Also, the silt soil has good water retention capabilities but it ranks low in terms of drainage.

Pros: High natural nutrients composition.

Cons: Bad drainage.

  1. Sandy soil

Sandy soil is the coarsest of all types. It has low pH, reduced water retention capabilities, and is prone to erosion. However, sandy soil has good drainage, which makes it easy to work with.

Pros: Healthy drainage.

Cons: Poor water retention capability prone to erosion. 

  1. Clay soil

Clay is characterized by high levels of nutrients and minerals. Also, clay retains water excellently. However, it has a dense texture, a high pH level, as well as poor drainage.

Pros: Excellent water retention capability, rich in nutrients

Cons: Heavy texture, poor drainage

  1. Loamy soil (best)

Loam is the most preferred type to plant cannabis in. It is an excellent blend of other soil types and complements them with additional organic compounds. Loam has an excellent balance between its water retention capability and drainage. Also, it is rich in oxygen.

Pros: Fantastic retention capability, good drainage, high nutrient composition.

Cons: Rare and costly to acquire.

Amendments to improve soil quality

The soil types mentioned earlier can be gotten from two sources:

a.) Naturally (that is, when you excavate the soil by yourself)

b.) Or, you can purchase the soil from a store. 

Whichever one you decide to go with, it may not be optimally suitable for growing your cannabis plant at the start.

This brings in the need for amendments to provide your available soil with whatever it lacks. Also, amendments are useful in ensuring your loam retains its high qualities over time. Fortunately, these amendments are easy to acquire at most local plant shops.

  1. Vermiculite

Vermiculite is a highly beneficial heat-treated mineral. It makes the soil lighter while also increasing water retention capacity. 10% of vermiculite in total soil composition is enough to get optimum results when you grow weed with it.

  1. Perlite

Perlite is the most commonly used soil amendment. It is very useful in improving drainage, as well as airiness. Perlite also has little effects on water retention of the soil. About 10-15% of perlite will do the trick on improving the drainage of your cannabis soil.

  1. Coco coir

Coco coir is otherwise known as coco fiber. It is used for increasing water retention capacity and to lighten tight soils. In case you want to reverse your depleted soil qualities at the mid-life stage of your cannabis plant, Coco air will come in handy. Its recommended composition is 30%.

  1. Nutrients

Manure, vegetable scraps, and fertilizers are fantastic options to increase your cannabis soil nutrients if they have been lost over time. However, it is essential not to overload your loam with these nutrients. This is because too much of them will “overheat” the loam for your cannabis plant. Thereby killing it.

Other common soil amendments are:

  1. Bat guano
  2. Peat Moss
  3. Biochar
  4. Bone Meal
  5. Fish Meal
  6. Glacier Rock dust

DIY marijuana soil recipe

There are some cases where you do not want to work with natural soils or purchase samples at the store. Here, you will have to create your own cannabis soil. Fortunately, we have the recipe for just that. Dive in!

Ingredients:

  • 1 cup of humus
  • 2 parts of compost
  • 1 part of coco coir
  • 1 part of vermiculite

Directions:

  1. Use of sieve to remove large chunks from compost.
  2. Soak the coco coir in medium temperate water.
  3. Mix vermiculite with coco coir using a bucket.
  4. Add in the compost.
  5. Check the pH to ensure it is within supported levels.
  6. Voila! Your cannabis soil is ready.

In conclusion

The quality of your cannabis soil is very vital to the plant’s eventual yield. So, it is important you are informed on ways to identify and improve it at every stage of your plant growth. This article does justice to help you achieve that, and all that’s left is for you to get to ‘planting.’

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