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bat guano for cannabis

Bat guano for cannabis

People generally use chemical fatteners on their plants, such as Monster Bloom, Brutal Buds and the like. When you use organic fertilizers there’s not a very large range of products to choose from that can guarantee fat and heavy buds.

Bat guano is extremely slow releasing, and your plants won’t begin absorbing it until after about a month of applying it. If you mix it with the new soil that you’re going to be transplanting too, once your plants begin fattening their buds they will have a high natural PK level that will fatten and harden your buds up just as much as if you were using chemical fatteners. You’ll need to mix two big spoonfuls per 7L of substrate in the flowerpot.
We can guarantee that you’ll have extremely similar results to chemical products, and the taste will be exactly the way you want it to be rather than affected by the chemicals and minerals. When growing organically, you’ll always have a much higher quality result than with chemical products and fertilizers.

Once the guano is in the soil all you’ll need to use is a flowering stimulant until you see the buds, and then a flowering fertilizer base like BioBloom or Bio Flores, and you should be ready for a spectacular harvest.
When you grow using organic fertilizers, they are absorbed slower than others and you’ll need to water properly so the plants can drink them up. Growth and flowering fertilizers are usually absorbed in about a week after using it in the irrigation, but there are other fertilizers that take much longer to be absorbed like guano.
If you’re growing indoors with seasonal strains then you just have to use it once when flipping the light schedule to 12/12 and transplanting. For autoflowering versions, you can apply it to the soil in your plants definitive flowerpot from the start, although for outdoor seasonal plants you’ll need to use it at least twice; once when you’re transplanting, and then again a month later by spreading it on top.
Remember, never use more guano than is recommended as this fertilizer is quite strong and you might end up burning your plants. Also, never apply it more than the amount stated here or the soil will end up too saturated and your plants might get over-fertilized.
Fatten your buds with Guano; when you flip the lights on your plants to get them to flower, you’ll need to transplant them to their permanent flowerpot and you’ll also need to prepare more substrate for your plants flowering phase.

For that second dosage you should really dig a little sort of moat around the trunk, maybe around 10-15cm away from it, and in that moat place two big spoonfuls of guano per 7L of substrate. This is the last time you’ll need to use it on quick flowering strains; if your plants are going to be at it until November-December then you can repeat this process once, even twice more.

Fatten your buds with guano, a slow releasing fertilizer that is 100% organic and guarantees thick, dense buds all over your plants.

Bat guano for cannabis

Even Brady admits that buds produced by organic grows are sought out by connoisseurs because of better taste and smell, but he maintains that his yields are higher and the nutrients he uses harmless. And while Steven Newman — professor of floriculture, horticulture and landscape architecture at Colorado State University — doesn’t research marijuana (and says he can’t until its schedule-one status is revoked), he says that plants take in the same nutrients no matter how natural they are. “I have no knowledge of any traditional hydroponic fertilizers, organic or conventional, as being toxic for human consumption,” Newman says. “Whether they are classified as organic or conventional is determined by the degree of processing and/or manufacturing.

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“We try to educate people and teach them how to apply it themselves,” says Leandro Mano, director of Rx Green’s research and development. “You need to know what’s going on inside your plant.”

So where do commercial growers fall in this debate? Such growers have got to consider the number of consumers they serve, as well as the quality and production standards that those consumers expect. John Andrle, owner of Denver dispensary L’Eagle, says that basic nutrients are a necessary part of the industry, and while organic grows are a model to strive for, they just don’t make financial sense for most commercial grows. “Fully organic grows require an insane amount of human labor, which is expensive,” he says. “It’s obvious to me that the general mood of the cannabis industry is to make money, not spend money making healthy products.“
Studies on growing conditions, like the ones that Mano (who has a degree in agronomy and a background in biotechnology) heads up are relatively new. Fertilizers for cash crops such as corn, wheat and tobacco have all undergone rounds of testing by research firms and universities, but the book on marijuana nutrients remains essentially unwritten. And some growers don’t care if it stays that way.
Instead of the near-twenty-plus types of supplements that some grows use on a single crop, Rx Green Solutions uses just two bottles of nutrients specifically made for the grow and bloom stages (four overall), making the application easier and reducing the risk of burning — a symptom of overfeeding in which the leaves curl inward and potentially lose mass.
Although Andrle acknowledges that overfed cannabis is probably prevalent in the legal market, he says there’s a much bigger issue to worry about in the growing process: “What is becoming apparent is that growers are overly reliant on synthetic pesticides. If I had to choose between pot that was full of residual nutrients or pot with trace elements of dangerous pesticides, I’d take the nutrient-laced pot every time. I think there are happy mediums between clean and toxic. The balance boils down to [the fact that] nutrients are basically just salts — nitrogen, phosphorous and potassium — while synthetic pesticides are…who the hell knows what?”
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By using natural fertilizers like Jamaican and Mexican bat guano (bat poop) for phosphorus and nitrogen, he explains, he’s eliminated the need for pot-specific growing nutrients — but that doesn’t mean the growing process is any easier. “It took me a few tries to get the soil down, and each batch takes about thirty days to mature. It takes patience. Brewing my own compost tea is also a never-ending learning experience,” he says. “The nutes made it easy. Everything came ready to add in water. But if you want peace of mind, you have to do it yourself.”

Which nutrients are best for use on marijuana crops? We consulted some experts. Learn more at