"Our Growing Soilutions substrates are made from high-quality raw materials."

"The unique air and water distribution in the growbags enables the plants to root easily."

"The unique characteristics of Fibre-Neth ensure excellent rooting."

"Paperpots are suitable for all types of cuttings and nearly all cultivations."

"The substrate is tailored precisely to our customers’ growing requirements."

High-quality, natural rooting and growing media for professional horticulture

The Van der Knaap Group is a Dutch family company with production facilities all over the world.
We develop sustainable, high-quality products and services in partnership with our customers.



Van der Knaap guarantees the quality of its products by keeping production, processing and quality control under its own management.



We continuously optimise our existing products and develop new products.




We use environmentally friendly raw materials and contribute to the society in which we operate.


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