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Growing Cannabis with Bat Guano

Bat guano for camanos

Bat guano for cannabis has an ancient legacy as an effective organic fertilizer. When you observe the advantages of guano on cannabis plants, you will understand why wars have been fought, and riches earned and lost because of guano.

What is guano?

Guano is the substance formed by the accumulated feces of bats, seabirds, and seals in low-humidity conditions, such as in severely dry areas where the scant amount of rain is insufficient to drain out the nitrogen-rich ammonia in the feces. Guano fertilizer for cannabis is highly effective because it contains a high concentration of the three key components required for cannabis cultivation: nitrogen, phosphorus and potassium. The guano trade was essential in developing modern farming practices in the nineteenth century. It led to the colonization of distant islands in various world areas.

Is bat guano good for cannabis plants?

Bat guano cannabis is rich in nutrients and can help cannabis plants grow during the vegetative and flowering stages. Because it is organic, when appropriately used, it will improve the substrate and promote microbial life. Bat guano soil is an excellent fertilizer that improves the texture and promotes the healthier decomposition of organic matter. Guano for cannabis should be considered a one-stop shop for solid crop growth by anyone growing cannabis.

Macronutrients present in bat guano

Cannabis plants require a certain amount of macronutrients to grow to their full potential. The bat guano NPK formula comprises 10% nitrogen, 3% phosphorus, and 1% potassium.

  1. Nitrogen is required for the synthesis of chlorophyll and amino acids. It ensures that the plant that appears above the soil matures properly. Find out more about avoiding a nitrogen deficiency in cannabis plants.
  2. Phosphorus is a necessary element for healthy resin production and strong root growth. It’s also necessary for photosynthesis. It’s best to avoid a phosphorus deficiency in cannabis at whatever cost.
  3. Potassium, which is essential in using air and light, acts as a bacteria and mold resistance booster. It also aids in the strengthening of branches and stems. Be aware, potassium deficiency in cannabis plants can lead to major issues if left unattended.

Micronutrients present in bat guano

Cannabis plants, in addition to macronutrients, require a range of micronutrients to survive and flourish.

  1. Boron helps form the cell walls, repair the cell membranes, and allow the movement of sugar in the growing parts. 
  2. Calcium – is essential in response to pathogen attacks.
  3. Iron – aids in the production of chlorophyll within the pot plant.
  4. Magnesium is central to the chlorophyll molecule to assist in photosynthesis.
  5. Sulfur and Zinc – are required for protein synthesis and activation of critical enzymes.
  6. Manganese – is essential for the smooth operation of several biological systems inside the plant.

Importance of bat guano

Bat guano fertilizer for cannabis is highly valued in conventional and organic cultivation. It is fast-acting and adapts well to each stage of growth, resulting in long-term benefits:

  • Improves the overall health of the substrate by introducing beneficial microflora and microbes.
  • It raises the pH of the water to improve nutrient absorption.
  • Because of its slow nutrient release, it can provide nutrients for extended periods.
  • Speeds up the decomposition of depleted matter and activates composting.
  • It removes toxic elements from the soil.
  • It controls and prevents nematode infestations.

Can you use bat guano during flowering?

Growers who use bat guano for flowering cannabis cultivation produce longer-lasting and bolder tastes and terpenes. Many growers enjoy using guano as a fertilizer.

Cannabis flowering stage
Cannabis plants in their flowering stage

The high phosphorus levels are a great way to encourage more flowering. It promotes thicker branch development to support the heavier buds and produce stunning chunky white pistils.

How to feed bat guano to cannabis plants?

If you happen to come across some commercially available bat guano for plants, it’s simple to incorporate into your home gardening projects. With that in mind, we have compiled a list of techniques you can use to get the most out of your plants.

Applied as tea downwards

Bat guano tea for cannabis is the most effective way to feed your plants. Here is how; Add one tablespoon of guano to each liter of water ( use warm, not hot! You will eliminate the microorganisms). Then, stir the water while adding the guano, then set aside to relax overnight.

How often to use bat guano?

Utilize once per week to ensure vibrant development. For bat guano tea for cannabis, try to use chlorine-free water. You can use pure water or boil some tap water for 15 minutes before allowing it to cool. You can also make a bat guano tea bag to aid in leaching nutrients into the solution. Tie your bat guano in cheesecloth and secure it with a rubber band. Use a stick to maintain it at the bottom of the container overnight.

How long does bat guano take to break down?

Bat guano takes some time to decompose before being used by plants. Unless you use a catalyst (or enzyme) to help break them down, it could take up to two weeks for the guano you applied today to be functional by the plants.

How much bat guano do you need per gallon of water?

One cup of bat guano per gallon of water is required for a regular bat guano tea recipe. It is critical to remember that bat guano can cause illness in people with weakened immune systems and harm lung health. When mixing guano with water, always wear a mask.

As an organic soil amendment containing bone meal and chicken manure

From the beginning, incorporate guano into an organic soil mix. Along with a bone meal, chicken manure, feather meal, and rock dust, Guano provides the cannabis plant with a wide range of essential nutrients, vitamins, and minerals. Try this recipe for a bountiful crop of cannabis.

Directly applied as a soil amendment

You can improve plant performance by adding bat guano soil. Here is how it works: Dig it in (under the topsoil) to ensure proper activation. Then, water it in thoroughly because it will dry, clump, and not work as well if only sprinkled on the surface.

Risks of using bat guano

Although there are numerous advantages to using bat guano as a fertilizer, there are a few risks to be aware of. When it builds up, it promotes the growth of the histoplasmosis fungus. In humans, this fungus causes severe respiratory problems.

When working with the substrate, it is critical to wear protective face masks. It would be best to exercise caution when using guano for your plants; don’t overfeed them as this can cause nutrient burn and impede their growth and development.

Picture of Janice Bernstein

Janice Bernstein

Janice has been on the cannabis scene for many years now, though she tends to keep to herself and might fly under the radar for many, even those well-versed in cannabis growing. Her writings on different methods of watering cannabis helped bring the use of reverse osmosis water to the forefront of cannabis gardening. About this Author

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