African experience in perspective

Bosman Van Zaal and Hoogendoorn Growth Management have a wealth of experience in various African counties. Together with Green Farming partners they have been involved in a range of projects in Africa often in collaboration with local authorities.

Dutch horticultural solutions contribute to higher yields and allow a sustainable way of using water, nutrients and energy.

With Hoogendoorn and Bosman Van Zaal as partners a long term investment and partnership is key, helping you as a farmer to always be a step ahead and reaching the maximum results out of your greenhouse or open field crops.

The overseas partners have a fully booked year with exhibitions to look forward on. The companies will take part consecutively at exhibitions in Ethiopia, Kenya and South Africa.

Collaboration is key to success,  therefore we welcome you to meet  us and see some of our experience on projects in perspective.


Early 2015, Bosman Van Zaal and Hoogendoorn set up a greenhouse pilot project for Rwanda Best as part of the SMART Horticulture programme. The aim of this project was to enable farmers in Rwanda to reinforce sustainable and profitable food production with attention given to food safety. By combining Dutch technology and expertise with the local experience of farmers and knowledge from institutions, everyone concerned is looking at a clear win-win situation.

The project is under the management of a consortium of Dutch companies, Greenport Holland International. Bosman Van Zaal and Hoogendoorn build the pilot greenhouse. Rijk Zwaan, Koppert and DLV Plant supplied input and expertise in cooperation with the knowledge institutions Wageningen University, TNO (Applied Natural Science Research) and the BoP (agriinnovation centers in Ethiopia and Kenya).

The development of protected crops will encourage vegetable farmers to raise both the quality and quantity of their production, thereby generating extra income. In turn, the extra income will make new investments possible to increase productivity. Besides the pilot greenhouse, the consortium also comprises suppliers of vegetable seeds, fertilizers and pest control. Analysis of current post-harvest practice and possible improvements in the chain already started in November 2014. SMART utilizes technological solutions  such as the Bosman Van  Zaal Cyclone and the Hoogendoorn process computer, iSii. A unique aspect of this project is its focus on small-scale, local farmers in Rwanda.


Uganda is certainly not the first thing that comes to mind when you think about flower cultivation in Africa. Surprisingly, after Kenya and Ethiopia, Uganda  is Africa’s third largest grower of roses. While other areas in Africa suffer from drought and water  shortages, Lake Victoria is a large, stable source of quality water. The climate in Uganda is not ‘stifling’.

Temperatures range from 26 degrees Celsius during the day to 17 degrees Celsius at night. Wagagai is a production location situated on  a peninsula in Lake Victoria. The company was established in 1998 by Dutch investors.

Today, the total operation extends over 26 hectare. At present, with more than 1,200 employees, Wagagai is the largest horticultural employer in Uganda. To realize energy savings, under supervision of two Bosman Van Zaal engineers, Wagagai has placed and installed  its own field with four, 80 meter long solar collectors and a 300 cubic meter heat storage tank.

This installation offers a sustainable replacement for much of the existing energy supply: three heat pumps, three aggregates and a boiler. Sixty percent of the greenhouses now utilize solar heating, with expansion plans for adding more  collector fields.


The Green Crisp Farming cooperation in Namibia grows cucumbers, green paprika and lettuce. The aim of the Green Dutch Energy System installed, is to generate and store a maximum amount of solar energy per day. It is an independent, reliable energy solution that  Technology reduces the customer’s fixed energy costs. A unique feature of this system is that the Heat Storage Tank utilizes the natural property of water: stratification.

The hot water is located at the top and the cold water at the bottom of the tank. Hence the hot water is guided to the greenhouse and the cold water returns from the greenhouses This is essential, the better the stratification, the higher the efficiency of the system.


For more information

please contact:

T +31 (0)10 460 80 80

T +254 707 00 03 08

M +254 720 112 510

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