Everything that your plant needs
Our fertilisers are crafted and produced in house, based on years of knowledge about the needs of plants. Hesi's vision is to provide you as the grower with a fertiliser of high quality that is easy to understand and use. Our products are designed for Soil, Hydro & Coco specifically.

How to grow tomatoes on a balcony
Growing your own food is one of the most satisfying things in life. Tending your plants with care until you get the fruits and enjoy them at the table with your loved ones is hard to beat. If you live in the city it is a more complicated experience to carry out, but nothing is impossible. If you have a balcony and a minimum of sunshine, you can do it without any problems.&nb...

Amino acids & enzymes in plants
By pampering our plants and adding the right vitamins and amino acids to them, we are able to support the plants in the difficult task imposed on them: to grow as much as possible. We are creating not just strong plants, but you can see them as body builders. As already described in our article on vitamins, we are not talking about pills and drinks for humans as plants canno...

Tips for successful hydroponic growing
Hydroponic systems can be complex and consist of many working parts, which can make growing and maintenance seem like a difficult task. We have therefore put together some tips to make your hydroponic growing into a success!
News, Cultivation Tips & More
Read the latest news, blogs and articles to learn more about cultivation, plants & our products. We love to share our years of knowledge with you!

Who is Hesi?
Hesi stands for HEnk and SIglinde - the founders of Hesi. Their love for plants united and the Hesi products were born in 1996. Since then, Hesi has grown from the garage to the current production halls in Kerkrade, the Netherlands, where all products are produced in-house and shipped all over the world.