Let us introduce ourselfs!

HESI Plantenvoeding B.V. is producing and marketing plant fertilisers, plant aids and soil additives. The company is located in the southern part of the Netherlands, in Kerkrade, which is in the border region of Aachen.

Did you know?


The name HESI is a combination of the given names of the Company's two founders and directors: HE stands for Henk and SI - for Siglinde, more precisely Henk IJpelaar and Siglinde Winkler. Plantenvoeding is the Dutch equivalent for 'plant nutrition'.

High quality has been the main characteristic of Hesi's fertilisers and plant supplements from the outset. Such valuable additives as amino acids, enzymes and plant sugar turn every product into a true "source of health" for plants. Through intensive research into the secrets of plant metabolism has led to HESI successfully developing an optimally balanced composition for each phase of the plant life cycle. The result is a clearly organized range of fertilisers for universal use instead of a designated fertiliser for every single plant species! Extra vital substances act as a balsam on the plants increasing their energy. Thus cultivation of indoor, garden and patio plants turns into a true delight.


At the Hesi factory in Kerkrade (The Netherlands) all products are mixed, filled and packed by our own efforts, before they are sent directly to customers. State-of-the-art technology and integrated operating software combine business processes of storage, production, wholesale and financial accounting into an integral edifice, which guarantees optimum transparency and need-optimized production. Short storage times, use of batch numbers, "first-in-first-out" technique and EAN-13 code are a matter of course. Simple applications, detailed information and unique color-coding facilitate the plant lover. Articles on plant physiology by engineer Siglinde Winkler are notable for attention to detail. Besides solid knowledge of the products, the company's website www.hesi.nl and www.orchidsfertilizer.com, also features a selection of these articles on plants, whereas specific questions may be asked in the forum.


Hesi is a thriving international company with a global reach including Europe, America, Asia and South America, with a personal touch and a down-to-earth approach.


Only when the end user is satisfied, we are satisfied, too!

Hesi Plantenvoeding B.V.

Klarenanstelerweg 11

6468 EP Kerkrade

The Netherlands


Tel. 0031 (0) 45 569 04 20