Coffee grounds
Fertilizer for the growth phase
The use of coffee grounds as a natural fertilizer has long been well known, and it is also one of the most commonly used homemade fertilizers for marijuana.
The coffee grounds are acidic and promote the development of acetic bacteria in the substrate, containing about 2% nitrogen and other organic nutrients.
A good way to prepare a good marijuana fertilizer is to add the coffee grounds to your compost bin or composter, or spread them and mix them with the substrate that will be in contact with the roots of your plant, but you should control the pH well as they can leave the substrate too acidic.
Another way to use the coffee is to dilute the coffee grounds in a litre of water and leave the mixture to stand for 24 hours. After this time we have a good dose of fertilizer for our plant. In this case we do not use the sediment directly as fertilizer, but rather the mother waters derived from the digestion of the sediment.
Wood ashes
Fertilizer for the final phase of flowering
Always using broadleaf woods, this is another good natural fertilizer for marijuana. We can obtain the wood ashes from a barbecue made from logs or from a chimney in which we use only wood. The result of the combustion of the wood is a substance rich in potassium and phosphorus (10% in the form of potash), so we have a mineral fertilizer suitable for the final phase of flowering, used individually or combined with some resin enhancer.
One way to prepare the ash for fertilization is to collect it shortly after the wood has burned and store it in a dry place. It is best to apply it mixed with other organic substrates as it is almost exclusively a mineral residue. In addition, the ashes are very effective in preventing pests.
Another way to use wood ash is as a fertilizer solution, which as with coffee grounds, is prepared by diluting the ashes in a little water, and let them rest for a few hours.
And now you can water your flowering cannabis plants with the nutrient solution. Another of the most useful home fertilizers for your collection.
Banana Tea
Full cycle flowering fertilizer
This fruit is known for being one of the natural products that provides more potassium. Potassium is a key element, which is used in all stages of cannabis plant development, and is also one of the three main macronutrients of NPK, which we can all see in common commercial fertilizers.
Potassium helps the plant to assimilate sugars, starches and carbohydrates in general, which is why it is so essential for the flowering of the plant, as it helps to increase energy reserves and the construction of complex carbohydrates that give structure to leaves, stems and buds.
Potassium is also essential as it is associated with the biosynthesis of terpene-related proteins, the absorption of water by the roots and the opening and closing of stomata.
In addition to this essential element, banana tea also provides amino acids that can be assimilated by the plant so that we can say that it is an organic-mineral fertilizer.
A good way to prepare this potassium-rich fertilizer tea is to boil 3 banana peels in 1 liter of water, adding a little sugar. Once the mixture is cold, we remove the banana peels and use the resulting liquid to water our marijuana.
This tea is applied during the last six weeks of flowering. With this you will get up to 20% more fattening in your buds. You can also do it using honey, or sugar cane molasses.
A good fertilizer for marijuana, no doubt one of the best.
Nettle Tea
Foliar fertilizer and preventive insecticide application
Nettle tea (urtica urens) is more than a fertilizer, it is a product that provides active plant ingredients that repel insects such as aphids, whitefly and mites, although it can also be considered a fertilizer because of its high content of organic nitrogen and mineral components.
Its application is foliar and it is very easy to prepare since we only have to follow the same steps as in the preparation of banana tea.
Cook a good handful of nettles in a litre of water and use the resulting liquid (already strained) to water the plant.
A piece of advice that I give you, be careful when collecting the nettles, as they can produce skin irritation when touching the plant to cut it and make the extraction or maceration.
Brewer's yeast
Multipurpose fertilizer
Brewer's yeast has normally been promoted as an excellent food for human use, but due to its richness in minerals, amino acids and proteins it has been proposed as an excellent organic-mineral fertilizer, qualified as a good natural fertilizer for plants.
And don't mistake it for baker's yeast. The yeast we are going to use is nutritional, and corresponds to the residue left by the yeast alive after fermenting with barley malt.
How to make this fertilizer for marijuana plants?
Very simple!
The preparation that we can make to fertilize consists of a small spoonful of yeast of beer dissolved in a liter of water, we will obtain another good fertilizer, in this case for flowering of the cannabis, since it is very rich in phosphorus and potassium.
Egg shells
Calcium deficiency corrector fertilizer
An excellent calcium corrector that we can use in our preparations with fertilizers for marijuana are the homemade fertilizers based on eggshells. This type of fertilizer is used to provide extra calcium to our marijuana plant.
It is prepared by crushing six to eight eggshells in a mortar, which are then digested using a litre and a half of water with a few drops of hydrochloric acid (Salfuman) for 24 hours. Measure the pH of the resulting broth, which should be around 5.0.
After this time, the remaining shells are removed and the resulting broth is filtered.
We already have our calcium-rich fertilizer for our marijuana. Calcium deficiency is not very common in marijuana, as it is a very common component in undistilled or osmosed irrigation water, but keep in mind that the marijuana plant requires almost as much calcium as nitrogen, and that is why many brands of fertilizers for hydroponics incorporate it in their formulations.
Mix the resulting broth with some fertilizer rich in nitrogen for the growth phase, or in phosphorus and potassium for the flowering phase, although you can use it as a calcium corrector directly as long as they take the pH into account.
Animal faeces
Full cycle fertilizer
Although it may not seem very pleasant, animal feces are one of the most universal fertilizers for marijuana. It is a high quality organic fertilizer. To use this type of homemade fertilizer correctly for plants, you must collect faeces from already dried animals (sheep, goat, horse, rabbit, cow, etc.).
Before using this type of fertilizer you must compost it for two months or more before adding it to the substrate of your garden, as the composting process kills the seeds of the weeds and transforms the nutrients into more profitable forms for the plant. It is a very complete fertilizer for marijuana in macronutrients and trace elements, one of the fertilizers for plants of general use for the whole vegetative cycle of cannabis.
Lentils or bean tea
Root stimulants rich in auxins
Auxins represent a very important group of phytohormones that regulate plant growth and phototropism (movement of leaves and stems in search of light), causing branches to grow vertically by elongation of plant cells.
The auxins have traditionally been used in gel form for root development in cuttings and seedlings, as is the case of Clonex, one of the best known products for marijuana, and although it is true that they work very well in synthetic form, we can also find them in culture broths formed by organic products such as seaweed, and teas made from seeds rich in auxins, as occurs with certain species of legumes and pulses.
The teas made with these natural products are simple to make, as they are based simply on leaving the vegetables in water for a day, until they are completely hydrated. We can also heat the broth a little to help in the extraction of the nutritive compounds, then it is beaten and the resulting paste is strained. The final water, or broth, contains the nutritive extract rich in auxins, and is ready to use for rooting cuttings.
Another eco-friendly homemade cannabis fertilizer at your fingertips!