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Will Cannabis Grow In Compost? – Find Out Here

hand holding cannabis leaves

Will cannabis grow in compost?

The cannabis industry is awash with craze as growers, dispensaries, and home cultivators alike strive to find the best way to cultivate and harvest the plant.

Cannabis is a great plant, but it doesn’t grow as well in natural soil environments. It’s why with most dispensaries and growing operations, you normally see it grown outdoors in greenhouses. But, there’s an alternative. 

Yes, cannabis will grow and thrive in compost, although you will need to place the plant in sturdy potting compost mix designed for growing cannabis.

Very little maintenance is required; however, it is very important that your compost soil is free of biocides or any chemicals.

You should ensure that the soil surface of the compost moist, and that the temperature is kept above 15ºC.

If you want to introduce nutrients into the compost, you can do this by watering the compost with seaweed tea.

Marijuana can grow in homemade compost if it is blended with high-quality compost and watered frequently.

Cannabis does not really like soil however it does like compost. Cannabis plants grow better when they are given a soil that is prime quality, and when they are planted into that soil, they will grow exceptionally well.

Compost soil is an organic fertiliser made from organic material, which is the rotting matter of plants and vegetables. It is invaluable for making many soils, making it rich in nutrients and microbes.

It is also suitable for growing vegetables, fruits, and flowers. You can make fresh compost by mixing various materials: grass clippings, leaves, kitchen waste, food waste, sawdust and worm castings.

Will Cannabis grow in Clay soil?

Clay soil for cannabis! Clay soil is a staple for many growers. It’s cheap, easy to get, and it’s one of the most versatile materials in the world.

This soil type is an organic fertiliser that is widely used in the marijuana cultivation world. It’s a naturally occurring, mostly immature, clay called kaolinite that is found mostly in northern China, Japan, and Korea.

Cannabis does well in Clay Soil. Clay soil is made of tiny, tiny particles made of several different materials.

It is a soil type that is loose and fine-grained, that drains well and is easy to work with. It is often found on slopes or inland flood plains.

It is usually a combination of shales, marls, and clays. It is highly porous and absorbent, therefore it is known as an excellent medium for cannabis.

Clay soil properties have an influence on cannabis growth. Clay soils have high moisture retention so they are very good for cannabis growth.

Pros and cons of growing Cannabis in Compost

Cannabis is a notoriously finicky plant, with many conditions in its natural habitat that make growing it impossible.

Therefore, most gardens are grown in an atmosphere where the temperature, humidity, and lighting can be easily manipulated. 

With the opportunity to control such a crucial factor, cannabis growers are turning to the next best option: compost. If you’ve ever grown marijuana, you know it needs a lot of nutrient content to make it grow. 

Compared to growing marijuana in organic soils, growing marijuana in compost has the advantages and disadvantages.


  1.  Easy to grow
  2. Fast growth
  3. High yields featuring large, dense buds
  4. Different varieties
  5. Low odour
  6. You can control to have the right amount of nutrient level by adding the right amount to your plant.


  1. Difficulty of growing indoors
  2. Possibility of robbery due grown outdoor
  3. The risk of over watering, thus you will need to pay attention to the soil moisture retention to prevent damaging the roots of the plant.
  4. It is very hard to control the pH, as compost does not contain any limestone, which can be added to the soil mix to adjust the pH.

Pros and Cons of Growing Cannabis in Clay Soil

Your cannabis soil is the foundation of your marijuana grow, and if it is not quality, your plants will suffer.

It is essential to understand that cannabis plants require the right conditions for healthy growth, particularly good soil.

The soil quality you want to use to grow your plants is just as important as pruning, nutrient uptake and other growing techniques. 

The following are considered the pros and cons of growing cannabis in clay soil.


  • Clay soils are highly nutritious and have high organic matter, which is great for plants.
  • It holds water and nutrients well, and when you add compost to it, it improves the soil health and soil structure thus promotes microbial activity.
  • It is also easy to use and inexpensive to buy.


The negative side to using soil that is rich in clay is that it makes it difficult to work with. The amount of clay present in the soil affects the overall utility.

If the amount of clay is greater than other substances, it may cause a not adequate drainage, making it difficult to drain water properly because of the enormous size of clay particles.

However, if it is not the case, it may drain the water quickly. To sum it up, the drainage holes for water will become the problem.

Proper Care for a Cannabis Plant

Taking proper care of a cannabis can be a fun and rewarding experience. The issue is that most gardeners don’t have the right tools, or the right knowledge.

Cannabis plants require a lot of care, especially for the first few years.

You might think that because this plant is illegal in many countries, this would mean that it is not worth caring for, and if you do not nurture the plant, you will get a low-quality bud.

The old adage says that cannabis plants require different amounts of nutrients to grow depending on how they are cultivated, and therefore the important thing is to know how much to give them.

If you don’t provide enough, the plant will grow slowly and will have a short life, and will be less productive. If you give too much, you may end up with a plant that is large, tall, and leggy, but has little yield.

Cannabis Life Cycle

The cannabis growth cycle is a life cycle that affects every part of the cannabis plant, from germination to the separation of female from male flowers so that pollination can take place.

The cycle comprises three stages:

  1. The Vegetative Stage – where the plant grows leaves and produces buds. During this phase, a cannabis plant is growing as much as it can. The best way to maximise the amount of growth in the vegetative phase is to expose the plant to as much light as possible, while keeping the plant at a comfortable temperature.
  2. The Flowering Stage – is the next step in the cycle, where the buds develop a fine coating of resin glands. 
  3. The Maturing Stage – where the plant reaches its full height and produces the last flowers.

Proper care of cannabis plants is vital so that the plant keeps its quality, flavour, and abundance of THC and CBD.

To care for cannabis plant, here are some things you must do in order to ensure that the plant thrives:

  • Provide it with the right soil with nutrients,
  • Supply with the right amount of fertiliser,
  • Making sure your plants are never exposed to extreme heat,
  • Gets plenty of fresh air, and
  • Ensure that it is given the right amount of light.

Cannabis plants need nutrients to grow healthy and thrive. Without the right amount of nutrients, they can experience deficiencies, stunt growth, and have poor overall quality.

The first thing to take into consideration when growing your own cannabis is the type of soil you have in your garden.

Most people think all soils are the same, but this is not the case.

Marijuana plants can grow well without the presence of a lot of nutrients. However, there are a few important nutrients that are necessary for growth.

The essential nutrients needed for cannabis growth are

  • Nitrogen,
  • Phosphorus, and
  • Potassium.

By sustaining a healthy environment for your cannabis plants-especially a healthy soil, you will maximise your yield.

Growing your Cannabis garden indoor

The most common question people ask when it comes to growing marijuana indoors is “how to start?”. Well, here is a guide to the very start of your marijuana growing.

Growing marijuana indoors is very simple, but sadly many growers think they cannot get the quality out of their crop that they can outdoors.

To care for your cannabis plant, ensure you have the right amount of light for your room and a steady temperature of between 20°C and 30°C.

Balance of air or the right amount of air and soil for marijuana is to use 1/3 soil and 2/3 air for the best use of your irrigation system. An airy soil can cause your marijuana to wilt.

A cannabis plant requires 12 hours of light and 12 hours of dark to get the best results. When growing marijuana indoor, choose between a grow tent, a growing box, or a grow room.

Indoor growing requires the optimal temperature and humidity levels to be maintained, which is difficult when using traditional methods. This can be solved by having climate controlled grow rooms for optimal growth.

With a grow tent, you can control the humidity better than an open-air environment and you can cut back on the smell of the marijuana with the right type of ventilation. 

Growing cannabis indoors may seem like an intimidating proposition, but it’s really not that difficult with the right instructions and a little TLC.

Always remember the three key factors to consider when growing cannabis are the light, the soil quality with good water retention, and the nutrients.

The goal is to imitate nature, making it as easy as possible for the plant to grow and produce buds. A balanced soil is a healthy soil.

It is important to remember that you are growing a psychoactive plant. Meaning it is illegal to grow cannabis in most countries without a medical reason or a license.

Cannabis cultivation is the production of cannabis plants for consumption or sale. There is a lot of new business in the cannabis industry, from growing to sell cannabis plants, topical concentrates, and oils.

Proper Cannabis storage

Cannabis storage is essential to prevent contamination by other substances. Proper storage is important in keeping your cannabis fresh.

  • Proper cannabis storage is achieved by separating the buds from the leaves.
  • You can keep your cannabis in an airtight glass jar, but be sure to keep it in a cool, dark place like a cupboard or drawer.
  • You can also store your cannabis in a vacuum sealed bag in the freezer, which is optimal for longer-term storage.
  • Do not store cannabis in the refrigerator. The humidity and moisture could cause mould.
  • Do not place cannabis on the windowsill or in direct sunlight. The ultraviolet rays will decrease the potency of the herb.

Proper cannabis storage is essential to maintain the medicinal and psychoactive properties of the herb. When cannabis is not stored properly, the herb will lose flavour, potency, and will become susceptible to mould and mildew.

Mastering the proper manner of taking care of a cannabis plant may pave the way for you to own a business someday. Provided it is legal in your country, of course.

Cannabis cultivation is a subject that is often misunderstood and sometimes poorly communicated.

It’s a subject that’s vital to understand if you want to grow cannabis plants successfully, but if you’re not sure how to achieve it, then you might as well turn back now and just go on with growing your plants the way you always have.  

Ryan Hamilton

Ryan Hamilton

Im Ryan, a Medical Cannabis Activist & Blog Owner @ I started the blog as a medium to answer questions and grow the awareness of the herb. Along with the medicinal properties, cannabis can help grown the economy with its vast amount of taxable finances. Less violent properties than alcohol, cannabis legalisation is inevitable.

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