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Organic Fertilizers vs Mineral Fertilizers: Which is Better?

Fertilizing is an important aspect of growing cannabis plants. It provides them with the necessary nutrients required for each stage of their life cycle, ensuring abundant and high-quality yields. The choice between organic and mineral fertilizers can have a significant impact on the final results. In this article, we will explore the characteristics of each type of fertilizer to help you make an informed decision.

Where Do Different Fertilizers Come From?

Organic fertilizers are derived from natural sources, such as worm humus, guano (partially decomposed bat droppings), fish meal, and bone meal. These fertilizers are obtained from elements present in nature and are considered complete and highly beneficial for cannabis growth. They are especially suitable for beginners and outdoor cultivation since they pose no risk of over-fertilization or root burn.

There are also various brands that offer 100% bio, organic products specifically designed for fertilizing cannabis plants. These products, like BioBizz Bio Grow, provide the necessary nutrients for the plants’ growth stage. However, it is important to note that these fertilizers are best suited for soil cultivation.

On the other hand, mineral fertilizers are produced through industrial processes. While they are neither better nor worse than organic fertilizers, many growers prefer them based on their specific needs and considerations.

Pros and Cons of Organic and Mineral Fertilizers

There are several factors to consider when choosing between organic and mineral fertilizers for cannabis cultivation. Understanding your goals, growing environment, and cultivation method is crucial in making the right decision.

Nutrient Absorption Speed

Organic fertilizers release nutrients slowly, providing a consistent and long-term source of nutrition for plants. This ensures the plants’ health and minimizes the risk of deficiencies or extreme issues. However, it may be challenging to address deficiencies quickly, which can negatively affect plant development, especially in time-sensitive stages like autoflowering or final flowering.

Mineral fertilizers, on the other hand, make nutrients readily available to plants, allowing for rapid rescue and correction of nutritional deficiencies. However, their effects are short-lived, requiring constant monitoring to prevent sudden issues. Over-fertilization is also a concern with mineral fertilizers, necessitating careful observation of the plants’ leaves.

Effects on Soil

Organic fertilizers improve soil quality by promoting beneficial microorganisms and enhancing plant resistance to environmental stressors. They also increase water retention and prevent erosion. However, certain types of organic fertilizers may not be suitable for specific cultivation methods, such as indoor hydroponics or coco grows, which require specialized nutrient formulas. Additionally, organic fertilizers can decay when left in water tanks, unlike mineral fertilizers, making them less suitable for automatic watering systems.

Mineral fertilizers, particularly when used in soil cultivation, are more affordable and concentrated. They provide greater performance with less initial investment, making them appealing to some growers. However, they are not environmentally friendly and can erode soil and contaminate water. When growing outdoors, it is important to minimize the impact on the environment by opting for organic fertilizers.

Cannabis Flavors and Aromas

The choice of fertilizer can influence the flavor and aroma of cannabis plants. Organic fertilizers tend to increase terpene yield, which contributes to the unique aromatic profile of cannabis. In contrast, mineral fertilizers may not enhance terpenes as effectively and can reduce the flavor and aroma of the flowers. When using mineral fertilizers, it is essential to flush the plants’ roots before harvest to eliminate any remaining fertilizer and achieve a clean flavor.

It is also important to consider the health benefits when choosing organic fertilizers. Since these products end up in the body when consuming cannabis buds, opting for natural and organic fertilizers ensures safer and healthier flowers.


What are the benefits of organic fertilizers?

Organic fertilizers provide a consistent and long-lasting source of nutrients, improve soil quality, and enhance the flavor and aroma of cannabis plants. They are also safer for the environment and promote the overall health of the flowers.

Are mineral fertilizers more effective?

Mineral fertilizers are readily available to plants, allowing for quick correction of nutrient deficiencies. They are also more affordable and concentrated, providing better performance with less initial investment. However, they can be harmful to the environment and may reduce the flavor and aroma of cannabis flowers.

Which type of fertilizer is suitable for beginners?

Organic fertilizers are often recommended for beginners because they pose less risk of over-fertilization and are easier to manage. They provide a more forgiving approach to nutrient application and allow for gradual adjustments.

Can I use organic fertilizers for hydroponic cultivation?

Organic fertilizers are more suitable for soil cultivation. Hydroponic systems require specific nutrient formulas tailored to the plants’ needs, as all nutrients are obtained through water. Organic fertilizers may not provide the necessary balance of nutrients for optimal hydroponic growth.

How can I prevent over-fertilization with mineral fertilizers?

To prevent over-fertilization with mineral fertilizers, it is crucial to closely monitor the plants and regularly check the condition of the leaves. Following the recommended dosage and flushing the plants’ roots before harvest can help maintain a proper nutrient balance.

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Dr. Jen Chalmers
Dr. Jen Chalmers
Dr. Jen Chalmers is an accomplished writer and cannabis enthusiast. With a Ph.D. in Botany and years of experience as a researcher, she brings a scientific perspective to her captivating articles on cannabis news, recipes, and the fascinating world of psychedelics.

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