News

Opening of Van der Knaap México

Our new production location in Mexico was recently opened. Centrally located in Mexico, Van der Knaap Mexico focuses on producing high-quality coco substrates for local horticulture. Producing locally enables us to offer fast delivery times and be in...
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Van der Knaap Group celebrates 40th anniversary

This year Van der Knaap Group will celebrate that 40 years ago the foundations of our company were laid. In the coming period we will reflect on where we come from, where we are now and how we see the future for our organisation.
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Out now: the latest Grow-How!

The latest edition of our newsletter Grow-How! is now available. In this edition we inform you about the opening of our new production location in Mexico, our new organic press pot substrate, results of our recent rooting trial, our sustainable way to...
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Lettuce in a hydroponic system: 100% organic nutrients

Van der Knaap is known for their vast substrate knowledge, but did you know we also developed a sustainable cultivation system? The liquid nutrient solution rich in organic NO3 that is produced with this system is also extremely suitable for other cultivation...
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Breakthrough in organic cultivation

Van der Knaap has developed a sustainable cultivation system in order to cultivate organically without using the soil. After several years of testing, the organic nutritional solution is now available to growers.
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Van der Knaap Group resumes coco production

The past few months the outbreak of Covid-19 virus led to Van der Knaap production locations in Sri Lanka, India and the Dominican Republic remaining closed till further notice. We can now inform you that production at the Growrite production sites has...
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Compact cultivation of kalanchoe without the use of Tilt

Van der Knaap has researched compact cultivation of kalanchoe in collaboration with the growers of Blos5. Blos5 is a cooperative of kalanchoe growers who work together in the areas of purchase, sales, marketing and cultivation. The research focused on...
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Weed control with TopControl

Weed control in pot and container cultivation is a challenge for many growers. Due to the limited application possibilities of pesticides, a lot of time must be spent on weeding weeds and moss during cultivation and delivery work.
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Satisfied students after using Forteco Power in All Climate Greenhouse

The first educational project in the All Climate Greenhouse in the World Horti Center has been successfully completed. Students of the MBO Westland have grown cherry tomatoes in this high-tech greenhouse from September 2019 up to and including January...
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New Holland Potgrond mixing line ready

In recent months, Holland Potgrond Poeldijk has been working tirelessly on the installation of a new mixing line. The existing loading line has been replaced by a new, fully equipped mixing line. In doing so, Holland Potgrond has invested in expanding...
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