We use natural raw materials such as coco and peat for our potting soil mixtures. Other raw materials such as perlite, clay, sand and bark can also be added. The precise composition of the potting soils is defi ned in consultation with the customer. Custom-made for their requirements.
Rooting media are the foundation for the growth of every crop. Van der Knaap off ers an extensive range of rooting products ranging from paperpots to Fibre-Neth® coco peat plugs and Obturo® plugs based on peat to our pressed pot based on white peat.
Coco peat substrates are suitable for a wide range of applications. The advantages offered by coco during cultivation include the relatively high air content and excellent drainage capacity. Van der Knaap supplies products that include coco substrate, (propagation)blocks, coco discs and plugs.
Forteco coco growbags facilitate sustainable cultivation with high yields. The substrate is extremely homogenous with excellent technical properties. Each type of growbag has a generative or vegetative effect for specific crop steering and management.
Van der Knaap also produces coco potting soil products for the consumer segment. These high-quality products are produced at the Van der Knaap Group’s own production facilities. The range includes coco blocks and discs for use in DIY concepts.
Van der Knaap is a group of companies that specialises in developing high quality, organic solutions for rooting and growth of plants. By offering complementary activities, Van der Knaap has rapidly become one of the top companies in professional horticulture, both nationally and internationally.
The rooting and growing products Van der Knaap Group supplies are based on peat moss and coco peat. We have made a conscious choice for materials that are recyclable and therefore environmentally friendly.
We accomplish high quality products by controlling the whole production chain, from raw material to end-user. The physical and chemical characteristics of raw materials are checked in our own laboratory from extraction to distribution. This way we can maintain the high quality standard we have set for ourselves. Our quality management system is RHP and ISO 9001:2015 certified.
Our products are developed in close collaboration with growers and growers’ associations. Ranging from improvements in potting soil mixtures and substrates to completely new products, Van der Knaap has the best solution for practically every crop and cultivation phase.
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