This two-day annual seminar now is in its 9th year and is organised by Grodan.

Its aim as always, is to provide propagators from around the world with a unique opportunity to catch up on the latest technological developments within the industry and to strengthen global networks.

Grodan, IPS, seminar, propagation

What does 10x greater efficiency mean for you in propagation.
Frans Peter Dechering, Corvus Drones

Robotization and AI are entering the greenhouse. And the ‘Sillicon valley’ high tech credo 10X is embracing us. It means that high tech should make the growers work 10 times faster, better, cheaper, more insightful, or leaner. Drones are the new growers’ eyes and give new insights and perspectives. Do I have enough plants to fulfill my sales contract? What is the expected quality? What should I do now to deliver the best possible plants? Early-stage seed germination detection or growth monitoring by autonomous flying drones enable the leanest possible supply chain. Practical examples are given about several applications.

Picture Corvus, partner for IPS 2022

Implementing LED solutions for propagators.
Gert-Jan Goes, Fluence

As LED lighting solutions become more common in greenhouse production also the specific spectral demands for the individual crops become clearer. Propagators typically focus on wide range of crops, varying from the well-known vegetables like Tomato, Cucumber and Sweet Pepper but also a broad selection of ornamentals. Different crops, varieties and plant stages are grown in the same propagation area. WPK (Westlandse Plantenkwekerij), a well-known propagator based in the Netherlands, implemented for season 2021-2022 a broad-white FLUENCE LED lighting solution at 2,5 ha of their propagation area. We would like to share our experiences.  

Picture LED, partner for IPS 2022

Innovative technology for climate uniformity in propagation.
Sven van Heijningen, Alcomij
Peter van der Avoird, Van der Avoird Trayplant

Directing air flow through the supporting greenhouse columns is an innovative solution to achieving an even climate profile in the propagation greenhouse. With the ventilation unit integrated into the column, the column also becomes a measuring point. From which visual heat maps can be generated. An algorithm is used to control each fan independently, thus the temperature and humidity differences in the greenhouse are almost eliminated. It is a construction integrated solution. Growers can use the information generated by the heat maps to adjust their screen strategy. From the point of view of energy savings, this can allow the greenhouse vents to remain closed longer.

At Van der Avoird Trayplant, 308 fans will be installed in a new greenhouse for the cultivation of strawberry and raspberry cuttings. It is the first major commercial pilot. During our presentation we will outline the technology and share with you the experiences of the propagator and why a decision was made to install them in the new greenhouse.

Alcomij IPS

Strawberry propagation on stone wool
Thomas Peters, Grodan

As the share of out of soil growing and demand for year-round strawberry production increases, protected produce becomes more and more important. Our products can make the difference in making the next step off sustainability, production, quality, steerability, both in fruit production and in propagating of young plants.


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How can robotization in propagation help the grower?
Raymond van den Berg, ISO Group

ISO Group was one of the first companies that introduced automatic grafting for vegetable plants.

At this point ISO Groups still continues to help growers with their grafting process by automating the skillful and labor intensive task of grafting young vegetable plants.

In this presentation ISO Group will dive into the history, present and future of automatic grafting.

As well as the challenges, the opportunities and conditions for automatic grafting.


Steps to seed excellence.
Peter Vredenbregt, BASF Vegetable Seeds

The presentation will explain the end-to-end supply chain processes within BASF vegetable seeds for high tech cucumber seeds. This starts with the handover from R&D to Operations and ends with the delivery of seeds to the customer. It will address as much as possible all aspects that are important for plant propagators as seed health, seed quality and predictability. The current best practices in seed production, processing, supply chain and quality assurance will be discussed as well as new trends and innovations for future supply excellence. It is the aim to give the best possible insight into what we do as seed company and industry to deliver high quality seeds to the market.

20210209 GR PHO5353

Advances in biocontrol for plant propagators.
Martin Zuijderwijk, Biobest

For the International propagation seminar I’d like to give a flavour of what we’re working on in line with this year’s theme Technology and Innovation. No matter where you are located we’re all facing dramatic reductions in plant protection products. One of them being the bio-fungicide Asperello, which results in pragmatic experiences against root diseases such as Pythium. As for technology, PATS C and Trap Eye are tools that help us monitoring flying insects automatically. To be prepared for any pest presence we all monitor sticky traps which takes time and human errors are realistic. Why not let the software do the trick when and how often we want it. Finally we all require skilled employees, with this in mind I’d like to introduce the Biobest Academy. The academy is there to assist you with your training needs and in doing so improve the success of integrated crop protection strategies in your business.

Logo plant empowerment for IPS

How to apply the basic principles of Plant Empowerment in propagation.
Ton Habraken, Ludvig Svensson​

Plant Empowerment is synonymous with Next Generation Growing, where stress is no longer a factor. The use of climate screens in propagation can prevent plant stress to a significant degree. This in turn results in greater efficiency.



Beekenkamp is well-known in the world of horticulture. They  work with vegetables, pot and bedding plants, packaging, and chrysanthemums. Beekenkamp Group brings together the strengths of three companies: Beekenkamp plants, Deliflor, and Beekenkamp verpakkingen (Packaging). Read more for Beekenkamp.

Beekenkamp logo


Clonal Propagation of medicinal crops

Ben Nikaj, Grodan

Grodan partners with the Wageningen University and Research Facility and top growers from all over the world; in order to develop the optimal stone wool substrate and irrigation strategies for indoor and greenhouse medicinal crops. Read more for Clonal propagation of medicinal crops.

Picture Ben Nikaj for IPS


Anthura produces strong young plants that are compatible with the most innovative production techniques. They  We create novel cultivating techniques  in order to achieve the most optimal Orchids and Anthuriums. Read more for Anthura. 

20220704 RW-GR PHO 1059

Cultivation for Compounds

Cultivation for compounds is a consortium of companies, committed to a four-year collaboration on research about the cultivation of medicinal crops for their compounds. All partners ensure that the research is carried out in accordance with the highest standards and the most recent methodologies available on the market. Read more for Cultivation for compounds.

20220704 RW-GR PHO 1060

20220223 RW-GR PHO 5637

Europa Hotel Scheveningen

Location of the International Propagation Seminar 2023

Read the news article on IPS 2022

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