Informatie Cannabis

Delphy Team Cannabis

Since the authorization of Cannabis in Canada and parts of the United States in 2018, Delphy has been involved in Cannabis cultivation. Universities in Canada and the United States were the first to reach out to Delphy because knowledge and practical information for this relatively new crop was needed. With the start of the “Closed coffeeshop experiment”, it won’t take long before the first legal Cannabis farms will be set up in the Netherlands.

To respond to this market and properly guide the companies involved, Delphy has set up a Cannabis team. Delphy “Team Cannabis” consists of twelve people, who all have their own specialism regarding to Cannabis cultivation. Delphy Team Cannabis contain specialists for propagation, crop protection, climate, fertilization, business plans and technical specialists.


For questions about cannabis research, cultivation, projects and training, please contact:
T: +31 (0)10 522 1771

Our services

Research at our own indoor facility

Delphy works with a number of parties within the sector, to conduct Cannabis research since 2019. Working together and sharing knowledge is the way to optimize Cannabis cultivation. Delphy now has a license to conduct cannabis research at their own research location, The Improvement Centre in Bleiswijk. The first tests are expected to take place around September 2021. The research location at the Improvement Center offers partners, customers and students the opportunity to see how Indoor cannabis research is done in the Netherlands.

(Turn-key) Projects

Delphy provides guidance to various cannabis projects worldwide. To ensure growers that they receive the best advice, Delphy works with a 6-step plan. Once the location and cultivation method are chosen, a functional design will be made in cooperation with the entrepreneur including an accompanying cost overview and business plan. Based on specifications, a tender will be issued among three different greenhouse construction companies. By comparing these offers, the best facility can be realized for the lowest investment. To ensure the construction is carried out according to the quotation, the construction will be supervised continuously. Also the organization of the company will be set up and the people trained. If necessary, an experienced grower is provided in order to achieve the best results in cooperation with the consultant.

Training and Education

Delphy Team Cannabis provides (online) training courses at national and international level. This includes theoretical topics such as plant physiology, fertilization, crop optimization and pests and diseases, as well as the latest practical research studies and post-harvest processes. The training courses are tailored to the knowledge needs of the customer. The next training will take place on September, 2021. If you are interested or if you would like more information, please contact:

Flyer Training Cannabis, Autumn 2021

Advice on cultivation strategy

Delphy provides cultivation advice and improves the cultivation methods of cannabis growers worldwide. This is done by means of company visits, but thanks to current technology it is also possible to do this remotely. For remote guidance, various crop and climate sensors are used that can be read on a dashboard. By looking at the dashboard on a daily basis, a good insight is obtained of what is going on at the cultivation location. In addition, it serves as a backup should something striking occur. In collaboration with the grower, the data will be analysed and the cultivation strategy optimized to achieve the best results.

Articles – presentations

The 3 most important learning points of 5 year Cannabis Consultancy

René Corsten spoke about these three learning points at the Greentech June 14 2022.

The 5 biggest challenges in the growing of medicinal cannabis and how to solve them

Presentation of René Corsten, He spoke about these challenges in 2022

Legal Cannabis Coalition (LCC) | From plant to product to client

We are the Legal Cannabis Coalition (LCC), a unique collaboration between companies from the fields of plant cultivation and lab research.

How to make cannabis resilient to Botrytis?

Botrytis is a particularly tricky pathogen. In a previous article, the Delphy Team Cannabis has discussed solutions to mitigate the problem and have botrytis-free cultivation: methods for this could be a careful genetics selection, proper dehumidification, but also alternative methodologies such as UV disinfection, as well as working on making the plant more resilient.

“Botrytis still a huge problem in cannabis”

The weeks before harvest are weeks in which the average cannabis grower is on high alert. With the increase in flower volume, the risk of the plants getting Botrytis increases as well.

Opportunities for the Dutch in the growing Colombian medicinal cannabis sector

Eleven Dutch suppliers paid a virtual visit to Colombia between the 18th and 20th of May. By using an extensive program, the suppliers became familiar with the possibilities in Colombia and got in touch with the most important players in their fast-growing cannabis sector.

Everything for a constant product: “It is so clinical”

The challenge for a medicinal cannabis grower is the ability to produce a homogenous, so reliable final product. The final product must be of constant quality.

Medical cannabis cultivation: customized advice from A-Z

Delphy is a Dutch research and consultancy firm. Four years ago, they started researching medical cannabis farming. Cannabis cultivation resembles that of chrysanthemums.

Know what you are giving your plants

In order to optimally control and monitor the development of your plants, it is essential to provide the right nutrient solution and to have it analyzed regularly (at least 1x every 4 weeks).

Pick or combine cannabis starting material

Quality of starting material essential! Just as is common with ornamental and vegetable crops, the quality of the starting material in the cultivation of medicinal cannabis is essential.

The importance of intensive and practical cannabis training

A good balance ensures healthier, more resilient plants and thus a higher yield and more uniform cannabinoid levels. Because cannabis is a relatively new crop, growers are often still looking for a good balance when growing it.

New activities, new members for Dutch cannabis knowledge center

The Legal Cannabis Coalition (LCC) in the Netherlands has four new members. These are Delphy, the Viscon Group, the VEK Advisory Group, and Thar Process. LCC is the Netherlands’ knowledge…

Playing with the dark period to influence flower formation

In most cases, tight dark period regimes are used for flowering in the generative phase of cannabis, usually it’s of 12 hours. However, playing with dark periods offers opportunities to further manipulate the flowering, according to the Delphy cannabis knowledge and advice team.