Acti-Vera, a vegan stimulant for growing marijuana plants For several years now, organic nutrients are the preferred option for many cannabis growers, either for indoor or outdoor crops. This type of nutrients for cannabis provides our buds with better taste and quality and is more environmental friendly than mineral fertilizers (chemical nutrients). Organic nutrients are products resulting from the flora and fauna that we can find in the animal, plant and also bacterial/mycorrhizal world. Today, and since a few years, there are more and more people who don’t want to use any product derived from animals, which is known as veganism.