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Ça pousse dans le bon sens
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Hesi fertilizers represent one of the most respected ranges in the world of indoor cultivation. This Dutch brand has developed a unique approach based on vitamin complexes and perfectly assimilable nutrients. Unlike conventional fertilizers, Hesi focuses on the synergy between macro and micro-elements to naturally boost plant metabolism.
Hesi's strength lies in its unique formulation that combines traditional NPK with vitamin complexes. The HESI Fertilizer Pack - Indoor and Outdoor Cultivation perfectly illustrates this philosophy with its complementary products that work in synergy. Experienced growers particularly appreciate the pH stability provided by these fertilizers, avoiding abrupt fluctuations that stress plants.
The other major advantage is the high concentration of Hesi products. One liter of TNT Complex often equals 2-3 liters of competitor's fertilizer, making the investment cost-effective in the long run. Plants develop a denser root system and increased resistance to environmental stresses.
For soil cultivation, the TNT Complex range remains the benchmark with its balanced 4-3-5 formulation. In hydroponics, growers tend to opt for Hydro Growth and Hydro Bloom, which are better suited for inert substrates. For coco cultivation, Hesi offers a specific formulation that compensates for coco's tendency to bind certain elements.
The golden rule with Hesi: start with Root Complex from the first days to stimulate rooting, then follow with TNT Complex during growth. SuperVit can be added once a week to boost metabolism. During flowering, Phosphorus Plus and Boost take over to maximize production.
With Hesi, the classic approach is to alternate clear water and nutrient solution, especially in soil. The high concentration of Hesi products allows for this alternation without nutrient deficiencies in plants. In hydroponics or coco, you can feed at every watering but reduce the doses by 20-30%. The important thing is to monitor the EC of your solution, which should not exceed 1.8 during growth and 2.2 during flowering. This method prevents salt accumulation and maintains a healthy substrate.
For coco, Hesi Coco remains the optimal choice because it compensates for this substrate's tendency to bind calcium and magnesium. TNT Complex can work in coco but requires more frequent CalMag additions. Hesi Coco already contains the appropriate ratios and prevents typical nutritional lockouts in this substrate. The difference is especially noticeable in long cycles where nutritional stability becomes crucial. In quality buffered coco, TNT Complex may suffice with rigorous EC monitoring.
For large plants, the classic mistake is to increase doses when it's better to increase watering frequency. Keep the recommended dosages (2-3ml/L for TNT Complex) but water more often with smaller volumes. Large plants consume more water than nutrients proportionally. Monitor the drainage EC, which should remain close to your input solution. If the EC rises, it's a sign of accumulation, and you need to flush with clear water. This approach prevents burns while maintaining constant nutrition.
The mixing order with Hesi follows a precise logic to avoid precipitation. Always start by diluting Root Complex in your water, then add TNT Complex while stirring well. SuperVit is mixed last because its vitamins are sensitive and can react with other compounds. Allow a 30-second interval between each addition and mix vigorously. This sequence ensures a homogeneous and stable solution. Check the final pH, which should be between 5.8 and 6.2 for optimal assimilation.
Hesi Boost is introduced as soon as the first pistils appear at a rate of 2.5ml/L, once a week maximum. This flowering stimulator is very concentrated, and an overdose can block the assimilation of other nutrients. Use it for the first 4-5 weeks of flowering, then stop to allow for the final flush. Some growers alternate it with Phosphorus Plus to avoid interactions. The goal is to stimulate resin production without overloading the plant at the end of the cycle.
Help & advice
About Hesi — click a question to see the answer.
Hesi Super Vit is a unique additive, a true cocktail of essential vitamins and amino acids. I recommend it to stimulate the general metabolism of your plants, whether in the growth or flowering phase. It helps strengthen their resistance to stress and optimize nutrient assimilation, which leads to increased vigor and improved yields. It's like a superfood for your crops! You can learn more about this product here: HESI Super Vit - Growth and Flowering Additive.
In indoor cultivation, using Hesi fertilizers is quite simple and intuitive, which is what I particularly appreciate about this brand. I advise strictly following the dosage charts provided by Hesi, which are very well designed and adapted to each plant development phase. Remember to always shake the bottles well before use and measure quantities precisely to avoid over-dosing. The Hesi approach, with its vitamin complexes, is designed for optimal assimilation under artificial light.
The main difference, in my experience, lies in Hesi's approach. Where other brands focus solely on macro and micro-elements, Hesi incorporates a high proportion of vitamin complexes and amino acids. This synergy allows for better nutrient assimilation by the plant, strengthening its immune system and optimizing its vital functions. It's a philosophy that aims to nourish the plant more holistically, for healthier and more robust growth and flowering.
For a beginner, I highly recommend the HESI Fertilizer Pack - Indoor and Outdoor Cultivation. It's a complete solution that contains the essential products for all phases of cultivation, from growth to flowering. It's designed to be easy to use and delivers excellent results, which is perfect for getting familiar with the brand without feeling overwhelmed by a multitude of products. This pack is an excellent starting point for understanding the Hesi logic.
Dosing Hesi fertilizers is a crucial point for the success of your cultivation. I always advise referring to the official Hesi dosage charts, available on their website or included in the packs. In general, it's better to start with a slightly lower dose than recommended, especially if you're a beginner, and then adjust based on your plants' reaction. A good practice is to measure the pH and EC of your nutrient solution to ensure that the levels are optimal for nutrient assimilation.
Absolutely! Hesi has developed specific ranges and formulations that are perfectly suited for hydroponic cultivation. Their nutrients are highly assimilable and designed not to clog systems, which is a major advantage in hydro. In practice, I often see excellent results with Hesi in hydroponics, thanks to the purity and stability of their nutrient solutions. You just need to make sure you choose the Hesi range dedicated to this type of cultivation.
The main mistake to avoid, as with any fertilizer, is over-dosing. This can burn your plants' roots and hinder their development. I recommend always starting with cautious doses and gradually increasing if necessary. Another mistake is not adjusting the pH of your nutrient solution, because an incorrect pH can block nutrient assimilation, even if you are using the best fertilizers. Finally, remember to shake the bottles well before each use to homogenize the solution.
Hesi Super Vit is a versatile additive that I recommend using throughout the plant's life cycle, from growth to flowering. Its vitamins and amino acids are beneficial at all stages to strengthen general vitality, improve stress resistance, and optimize nutrient assimilation. It's a product that actively supports the plant, regardless of its development stage, for more robust and abundant results.
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