The success in cannabis cultivation lies in many factors, being one of the most decisive the choice of fertilizer appropriate for each stage of plant growth. The "Types of marijuana fertilizer"They vary greatly, and each stage - germination, vegetative growth, flowering and harvest - demands a specific formulation to optimally nourish the plant.

What is a growth fertilizer?
A Growth fertilizer It is a product specifically formulated to meet the nutritional needs of plants during their vegetative stage. In this phase, plants require a high contribution of nitrogen (n), which is the main responsible for the development of strong leaves and stems, as well as a balanced amount of other essential nutrients. These fertilizers help the plants grow vigorously and develop an adequate structure to support the flowering stage.
The composition of growth fertilizers is designed to stimulate vegetative development through a high proportion of nitrogen compared to phosphorus (P) and potassium (K). This proportion guarantees growth robust and healthy, allowing plants to have the necessary base for successful flowering. Its use is especially crucial in crops such as marijuana without THC, where growth quality directly affects the final production.
The use of growth fertilizers must be balanced and adjusted according to the characteristics of each plant and its environment. An excess of nutrients It can cause problems such as toxicity, while a deficiency will limit development. Therefore, it is important to follow the manufacturer's recommendations and adapt the doses to the specific conditions of the crop, such as the type of substrate and climate.
The importance of NPK during plant growth
He NPK It refers to the three main nutrients that plants need: nitrogen (n), phosphorus (P) and potassium (k). During growth, nitrogen It plays the most prominent role, since it favors the formation of green leaves and strong stems. Without an adequate nitrogen contribution, plants will show slow growth and yellowish leaves, which will affect their ability to photosynthesize and develop correctly.
Phosphorus and potassium are also essential during this stage, although to a lesser extent. He phosphorus It contributes to the development of a strong root system, which allows plants to absorb water and nutrients more efficiently. For its part, the potassium It helps regulate metabolic processes and strengthens the resistance of plants against possible diseases and environmental stress.
Keep an adequate balance of NPK It is key to ensuring optimal development during the growth stage. Fertilizers specifically designed for this phase usually contain a proportion of NPK High in Nitrogen, as 3-1-2 or 2-1-1, depending on the needs of the crop. Monitor growth and adjust nutrient levels as necessary guarantees healthy and productive plants.
What are the best liquids for marijuana growth?
Liquid fertilizers are an excellent option for marijuana growth, since they allow a rapid absorption of nutrients and a more uniform application in the substrate or by foliar spray. One of the best liquid fertilizers for this stage is the one that has a High nitrogen concentration and microelements such as calcium, iron and magnesium, which complement the integral development of the plant.
Among the prominent products, are organic formulations, such as those based on algae extracts or bat guano, which in addition to providing essential nutrientsThey improve the microbiology of the substrate. On the other hand, synthetic liquid fertilizers offer a Precise dose of nutrients, ideal for growers looking for consistent and fast results.
When choosing a liquid fertilizer, it is important to consider the characteristics of the crop, as if performed on land, coconut or hydroponic systems. In hydropony, for example, specific liquids allow detailed control of the nutrient solution and avoid problems such as nutrient blocking. On the other hand, on land, organic products enrich the substrate more sustainably.
Another aspect to consider is the ease of use. Many liquid fertilizers come with Clear instructions of dosing, which simplifies its application even for beginner growers. In addition, some products are designed to combine with other supplements, such as root stimulators or growth potentiators, which maximizes the results.
Finally, do not forget that success in the use of liquid fertilizers depends not only on the product, but also on its application. It is essential to measure the pH and electroconductivity (EC) of the solution before watering, since these factors directly influence the ability of plants to absorb nutrients. With a good choice and a correct application, liquid fertilizers become indispensable allies for the healthy growth of marijuana.
Fertilizers for the germination stage
Germination is the crucial starting point in the life cycle of cannabis plants. During this stage, the seeds are activated, they begin to develop a seedling and eventually emerge from the substrate as a young plant. The importance of germination lies in the creation of a solid base for the subsequent growth of the plant. If it is carried out properly, the probability of obtaining healthy and vigorous plants is maximized.
Fertilizer recommendations
In the germination stage, it is important to understand that cannabis seedlings are extremely delicate and They do not require a significant amount of nutrients. For germination, soft fertilizers and slow release are recommended. Organic fertilizers, such as those made from seaweed or earthworm compost, are excellent options. These provide a moderate amount of nutrients and improve soil structure, facilitating healthy root development.
Liquid fertilizers
- Fertilizers in liquid format are ideal for the cannabis germination stage. Its fluid state facilitates a homogeneous application and efficient absorption by developing roots.
- Composition: Low concentration of nutrients, with emphasis on phosphorus. In this phase, phosphorus is vital for the development of the root system. A liquid fertilizer with a low nutrient concentration, but rich in phosphorus, promotes healthy growth of roots without the risk of overfertilization.
- Advantages: Efficient absorption and dosing control. The main advantage of liquid fertilizers is its easy absorption by the young cannabis roots. This ensures that seedlings receive the necessary nutrients for a good start. In addition, the liquid format allows precise dosing control, which is crucial to avoid supercharging in this delicate stage.
- Recommendation: B-52 of Advaced Nutrients It is a fertilizer that can be used in the cannabis germination stage, as well as in other phases such as transplantation, growth or flowering phase.

Powder fertilizers or soluble granules
- Water soluble fertilizers, presented in dust or granules, are another excellent option for cannabis germination. These dissolve in water, creating a nutritious solution that can be applied directly to the ground or to the culture medium.
- Composition: Balanced with emphasis on phosphorus, low in nitrogen and potassium. A balanced composition is key during germination. Phosphorus is essential for root development, while low nitrogen and potassium levels ensure that seedlings are not overloaded with nutrients that cannot be used efficiently at this stage.
- Advantages: Uniform distribution and nutrient control. The main advantage of water soluble fertilizers is its ability to provide a uniform distribution of nutrients. This ensures that each part of the soil or culture medium receives a balanced amount of nutrients, which is crucial for the uniform development of seedlings. In addition, by dissolving fertilizer in water, the risk of overfertilization is minimized, since the concentration of nutrients in the solution can be accurately controlled.
- Recommendation: he Plagron Seedbox It is a good option for cultivators with little experience since it includes a seedbed, 12 germination substrates and a germination accelerator.

Granulated fertilizer
- Granulated fertilizers are presented in the form of small solid granules. These apply directly to the ground, where they decompose slowly, freeing nutrients.
- Nutritious composition: Low in nitrogen (N), moderate in phosphorus (P), low in potassium (k), and with balanced micronutrients.
- Precautions: Use in moderation, observe the seedlings to adjust the application, and ensure a uniform distribution to avoid the concentration of nutrients.
Proper fertilizer use
To guarantee successful germination and the proper use of fertilizers, follow these steps:
- Humidity and temperature: Keep a high relative humidity (around 70-80%) and a stable temperature between 22-25 ° C (72-77 ° F). This will provide an optimal environment for the seeds to germinate. To make sure, use measurement instruments as thermometers, moisture meters ...
- Do not disturb the seedlings: Once the seedlings have emerged, avoid touching them or moving them in excess, since they are fragile at this early stage.
- Light irrigation: Wargely water to keep the substrate slightly humid, but avoid waterlogging, which can cause problems such as root rot.
- Lightning: It provides soft indirect light, such as filtered sunlight or low -power CFL lights, to encourage healthy growth. Another alternative is to use LED light of Led Led Solux Bombilla.
Fertilizers for the seedling stage
The seedling stage is a critical period in the development of your cannabis plants. During this phase, cannabis seedlings are developing their first true leave games and establishing a more robust root system. The importance of this stage lies in the preparation of seedlings for posterior vegetative growth, ensuring that they are strong and healthy from the beginning.
What fertilizer use for marijuana
In the seedling phase, it is essential to provide plants with the necessary nutrients for healthy growth, but in a soft and balanced way. Here are the key recommendations:
- Use a fertilizer formulated specifically for seedlings or young cannabis plants. These fertilizers usually have a higher nitrogen proportion (n) to promote the development of leaves. OPT FOR FERTILIZER Terra Leaves of Atami It is a good option to get a healthy and strong crop.
- Opt for quality liquid fertilizers that are suitable for seedling growth. Check the manufacturer's instructions to obtain the recommended doses.
- It begins with low doses and gradually increases as necessary, observing the growth of plants and paying attention to signs of deficiencies or excesses of nutrients.

Proper fertilizer use
To ensure the proper use of fertilizers in the seedling stage, follow these steps:
- Dilution: It always dilutes the fertilizer in water following the manufacturer's instructions. Avoid supercharging, since seedlings are sensitive and may suffer marijuana damage excess fertilizer.
- Frequency: Apply fertilizer in moderation and do not exceed the recommended frequency. Most seedlings only require irrigation with fertilizer every 1-2 weeks.
- Visual control: Constantly monitor the appearance of your seedlings. If you observe signs of yellow leaves or deformities, adjust the amount of fertilizer accordingly.
Fertilizers for the vegetative growth stage
Vegetative growth is a fundamental phase in the life cycle of cannabis plants. During this stage, plants develop their structure, grow in height and produce lush green leaves. The importance of this stage lies in establishing a solid base for subsequent growth and preparing plants for the flowering phase. Healthy vegetative growth translates into larger and more robust plants with a greater capacity for production of buds.
Fertilizer recommendations
In vegetative growth, cannabis plants have a growing demand for nutrients, especially nitrogen (N), which is essential for the development of strong leaves and stems. Here are the key recommendations:
- Use a balanced fertilizer with a NPK nutrient ratio of approximately 3: 1: 2 or 4: 1: 2. This will provide the necessary nitrogen for the growth of healthy leaves and the development of the structure of the plant.
- Be sure to follow the manufacturer's instructions for dosing and application frequency. Start with low doses and gradually increase as necessary, but avoid excess nutrients, which can lead to nutrient burns.
- Consider using organic marijuana or chemical fertilizer fertilizer for marijuana, according to your preferences and cultivation practices.
The fertilizer Pro Grow Box from Athena It is a good option since it offers a complete solution for growth in the vegetative growth stage of the cannabis plant. In addition to providing a complete and balanced formula of nutrients for roots and foliage, it stands out for being compatible with all types of crop, type of water and average culture.

Proper fertilizer use
To ensure the proper use of fertilizer for marijuana growth, follow these steps:
- Uniform irrigation: It distributes fertilizer in the substrate evenly to ensure that all roots have access to nutrients.
- pH of water: Verify and adjust the pH of irrigation water so that it is within the optimal range for nutrient absorption, usually around 6.0-6.5.
- Constant monitoring: Observe your plants closely and adjust the fertilizer dosage depending on your appearance. If the leaves become clearer or darker than normal, it can be an indication of nutrient problems.
- Foliar fertilization: Occasionally, you can apply nutrients directly to the leaves through a foliar spray to correct specific deficiencies.
Fertilizers for the pre-reflorization stage
The pre-phloration stage is a crucial point in the life cycle of cannabis plants, since it marks the transition from the vegetative growth phase to the flowering phase. During this stage, plants prepare to develop buds and flowers. The importance of this phase lies in optimizing the conditions for the development of abundant and high quality buttons.
Fertilizer recommendations
In pre-reflorization, cannabis plants require a different proportion of nutrients to encourage the production of buds. Here are the key recommendations:
- Change to a fertilizer that has a PNPK nutrient bumping that favors phosphorus (P) and potassium (k). A 1: 2 or 1: 2: 3 ratio is suitable for stimulating the formation of buds.
- It is important gradually reduce the amount of nitrogen (n) In fertilizer, since an excess of nitrogen can inhibit flower production and promote excessive leaf growth.
- Continue following the manufacturer's instructions in terms of dosage and application frequency.
The pack Top Crop Pack Bud has fertilizer Big One of Top Crop which is used to enhance floral shoots and obtain voluptuous flowers with color and beauty.
Proper fertilizer use
To guarantee the proper use of fertilizers in the pre-reflorization stage, take into account the following:
- Gradual transition: As plants enter pre-reflorization, the transition from a growth fertilizer begins to a flowering fertilizer. This is done gradually reducing the nitrogen content and increasing the proportion of fertilizer with phosphorus and fertilizer rich in potassium.
- Look at plants signs: Pay attention to how your plants respond to the new proportion of nutrients. If they begin to show signs of deficiencies or excesses, adjust the dosage accordingly.
- Avoid supercharging: It continues to avoid supercharging, since it can result in problems of excess nutrients and negatively affect the quality of the buds.
Fertilizers for the flowering stage
The flowering stage is the most exciting period for cannabis cultivators, since it is when plants begin to develop buds and flowers. During this phase, the plant focuses on the production of cannabinoids and terpenes, which will largely determine the power and aroma of the harvest. The importance of this stage lies in maximizing the quality and quantity of the buds.
Fertilizer recommendations
In the flowering stage, the nutrient needs of the plants change again. Here are the key recommendations:
- Use a fertilizer designed specifically for the flowering phase, with a ratio of NPK nutrients that favor phosphorus (P) and potassium (k). A ratio of 1: 2: 3 or 1: 3: 4 is adequate to promote the formation of dense and resinous buds.
- Continueeating the amount of nitrogen (n) in fertilizer, since plants need less nitrogen at this stage.
- It considers the possibility of complementing with secondary nutrients such as calcium and magnesium, which are essential to prevent problems such as calcium deficiency in this critical phase.
One of the most used fertilizers for the flowering stage is the Top Crop Bloom since it can be used in both interior and exterior crops and the results are very optimal.

Proper fertilizer use
To ensure the proper use of Floracion Marijuana fertilizer, follow these steps:
- Controlled fertilization: Manage the fertilizer in a controlled manner and do not exceed the doses recommended by the manufacturer. Cannabis plants can be sensitive to nutrient excesses during flowering.
- Constant monitoring: Regularly inspect your plants to detect signs of deficiencies or excesses of nutrients, such as yellow leaves or deformations.
- pH of water: It continues to maintain a pH of irrigation water in the optimal range for nutrient absorption, which is usually 6.0-6.5.
- Rinse before harvesting: During the last weeks before the harvest, consider the possibility of rinsing your plants with water to eliminate any excess nutrients and improve the quality of the buds.
Fertilizers for the harvest stage
The harvest is the climax in the life cycle of cannabis plants. It is the time when the precious buds that you have been cultivating for weeks or months are finally collected. The importance of this stage lies in making sure that your buds are at its optimal maturity point to obtain maximum power and quality.
Fertilizer recommendations
During the harvest phase, the use of fertilizers is minimized or stops completely. Here are the key recommendations:
- The application of fertilizers stops at least two weeks before the harvest. This allows plants to purge any excess nutrients and improve the taste and texture of the butt.
- Instead of fertilizers, consider the Use of supplements that rinse the substrate and help eliminate fertilizer waste. This can further improve harvest quality and a good option is the use of Cleanse of Athena since due to cleaning that best provides its growth due to the reduction of mineral inlays.
Proper fertilizer use
To guarantee proper use of fertilizers during harvest, follow these steps:
- Rinse: During the last two weeks before the harvest, rinse your plants with balanced pH water. Make sure the water that drains from the substrate is free of fertilizer waste.
- controlled pH: Verify and adjust the pH of rinse water so that it is within the optimal range for nutrient absorption, which is usually 6.0-6.5.
- Visual inspection: Look at your plants closely to make sure they are ready for harvest. The trichomas (small resin glands) in the buttles must have a milky or amber appearance, according to your power and effect preferences.