For all of you using soil to grow your beautiful cannabis plants, there are a lot of factors to take into consideration. Fertilisation is one of them. Deciding which products to buy and if you should use manure or not might leave you wondering if you could’ve had it better. We can’t help you with all your growing doubts at once, but we’ll try to explain one important topic now: worm castings.

WHAT ARE WORM CASTINGS?

Cannabis is a plant whose genetics predate civilisation. Plants have grown and adapted to certain environments. The biggest challenge growers face today is trying to replicate these conditions as best they can.

Worm castings can help with that. Worms are everywhere in the soil and their importance is often overlooked. Much like regular manure, the digestion and excretion process that worms go through on a daily basis plays a crucial role in your soil’s health. Worms are beneficial for how their systems break down organic matter. The finished product of worm castings is material that has been consumed, then expelled by the worm’s digestive system.

Worm casting fertilisers are absolutely packed with nutritional bacteria, fungi, and nematodes that will revitalise the soil and provide beneficial nutrients for your plants to thrive.

Worm Casting Organic Decomposition

HOW WORM CASTINGS WORK

Bacteria and protozoa will help maintain the soil’s health and will also keep away harmful diseases that may kill your crop. Additionally, they will break down ammonium in the soil to form nitrate. This is the easiest way for cannabis to consume nitrogen, which is one of the three essential macronutrients it requires.

Bacteria and fungi will also stimulate growth in the root zone, contributing to the plant’s resistance to disease. Nematodes are micro-animals that feed on the unwanted substances in your plant’s medium and therefore, will help keep your soil balanced and healthy.

THE BENEFITS

By now, you can see that there are numerous benefits to using worm castings. This is one of, if not the most, organic option out there. While the product is being made, the worms move around the soil a lot. This gives it constant aeration, which is really hard to achieve in soil. This will provide resistance to drought by allowing the soil to maintain its humidity and consistency all throughout the bucket/pot. Depending on how you feed the worms, they’re able to produce extremely high-quality manure. It will have no smell and the results will manifest themselves in vigorous plants.

One of the main problems growers face are nutrient deficiencies. If you’ve ever encountered one or read one of our numerous blog posts on the subject, you know that pH is one of the predominant factors responsible for deficiencies. If the pH is off, it won’t eliminate the nutrients themselves, but will force the roots to lock them out. Worm castings correct this almost straight away after inserting them into the medium. This is why many growers now use this method even as a preventive strategy. It allows growers to treat nutrient deficiencies with more confidence and accuracy.

Obviously, if you’re looking for naturally-grown cannabis, worm castings will be a great option. Whether for yourself or your customers, it is a great idea to grow purely organic cannabis plants. As time moves on, it’s important for growers to use methods that are environmentally responsible. Although some individuals argue for and against how organic cultivation effects that taste and highs of buds, there is no hard evidence directly correlating these variables.

HOW TO USE WORM CASTINGS

Worm castings are very expensive to use for 100% of your medium. This is why we are referring to them as fertiliser instead of as a medium. Worm castings are nutritious enough that some growers use them for their entire medium, although we don’t necessarily recommend this method.

Used as a fertiliser, worm castings can also increase the germination rate of your seeds and keep the medium at a respectable equilibrium. This is the kind of environment cannabis plants are naturally used to growing in. Worm castings rarely ever put undue stress on plants as they have worked symbiotically for generations.

But for all of you using a hydroponic system, there is now a liquid worm casting solution available. This can be used all throughout the different stages of life for your plant. Just be sure you know what you’re doing before using it. Add some to your water reservoir and you’re certainly going to see positive results.

Worm Casting Fertiliser Cannabis Cultivation

HOW TO MAKE YOUR OWN

Now that you know almost everything there is to know about worm casting fertilisers, it’s time you learn how to make your own. It sounds harder than it actually is. You’ll be needing very few ingredients and most of the process is done while you wait, so you won’t have a lot of work to do either.

Get a large container. There are a lot of worm containers available online now, but you don’t need to buy a specific one or break the bank. Just a normal plastic container will work fine. As long as it is an adequate size and can store the materials until they’re done, it’s perfect. The next step is to get your earthworms. You’ll be needing around 1,000, so you’re better off buying in bulk than searching around your backyard.

Once you have your little friends, it’s time to create their home for the next couple of months. Shred some newspaper or cardboard to coat the bottom of your container. To give this consistency, add coco coir, sawdust, or a similar material. Now it’s time for your organic products. Add your fruit and vegetable peelings. This will be a cheap, easy, and environmentally-friendly way of using kitchen leftovers. You can also add ground coffee, bread, and grains. Just stay away from meat and dairy. This will attract bacteria that you do not want.

Now, you can leave the container be for two months. After this, remove the worms. What’s left will be your worm casting fertiliser. Just remember that this is reusable. The worms will continue to reproduce, and as long as you feed them, they’ll survive. When mixing the final product, we suggest using around ¼ or even ⅕ worm castings for your medium by volume.

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