• Welcome to Hesi

    Nourishing your plants with care since 1996




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. 

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Easy DIY: Create your own amazing scented potpourri

Easy DIY: Create your own amazing scented potpourri

Today, we’re diving into a project that’s as fun as it is aromatic: making your own natural potpourri. Not only will your home smell amazing, but you’ll also be crafting something eco-friendly and chemical-free. Let’s get started!

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Unravelling the Genetics of Flower Color

Unravelling the Genetics of Flower Color

Flower colours captivate our senses, offering vibrant displays that are far from random. The shades we see in blossoms—pinks, yellows, reds, and blues—are the result of complex genetics and molecular chemistry. Flower colour is primarily determined by pigment molecules in cells, and it’s the genetic blueprint of each plant that dictates where, how much, and what type of pigm...

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The ecosystem of a closed plant terrarium

The ecosystem of a closed plant terrarium

Have you ever wished for a tropical paradise experience without having to fly to the other side of the world? Well, you can create that easily at home (well.. kind of). Enter the closed plant terrarium, a self-sustaining, airtight jar that turns small plants into big stars of a tropical microclimate. Think of it as your personal rainforest in miniature, requiring minimal mai...

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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! 

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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. 

About Hesi