Welcome on the site

On this site you find the names and addresses of the prominent Dutch nurseries and traders who participate in the business network Organicseeds.nl. These companies bring high quality seeds and plants and seedlings for organic cultivation on the market. These include seed potatoes, vegetable seeds, herb seeds, flower seeds, bulbs of different varieties as well as propagating material for fruit trees, avenue trees, shrubs, ornamental plants and forest and hedging plants
Use the contact page for any reactions to this site, for instance with a concrete request for propagating material for a certain type of organic vegetable crop or for more information.



Vision of plant vitality science

by Dr. Ir. Kitty de Jager

The future plant pathology

The opinion article by J. C. Zadoks (whom I still tend to call my professor) in the most recent edition of Gewasbescherming, the newsletter of the Royal Netherlands Society of Plant Pathology (KNPV) was the extra push I needed to write this article. It were especially the last lines of his text: ďWho knows the answers to the big questions? What can change under the influence of the Corona-epidemic. I donít know the answer.Ē, which increased the urge to write this article to such an extend that it is now in front of you.

Read more....


International Conference:

Organic Farming and Our Future Food System

"Our future food can only be Soil Food, based on a healthy soil, and the farmer who produces this is the doctor of the future, who will heal the earth"

Read more....


Press release

Startup meeting of the campaign of #People4Soil in the Netherlands
full of energy and inspiration

by Bertus Buizer (Sustainable Food Supply Foundation)     17 September 2016

On September 14, 2016, the inaugural meeting of the campaign People 4 Soil was held in the Netherlands. This is a European CitizensŪ Initiative for specific legislation on soil protection.

The meeting was organized by the Dutch Sustainable Food Supply Foundation and was held at EOSTA / Nature and More, which previously launched the international campaign called ŽSave our SoilsŪ.

Continue reading ....

Photo: participants startup meeting - #People4Soil
Photo credit: EOSTA


One-sided nutrient flows to Europe are detrimental to
soil fertility in Africa

What can give a new impulse to agriculture in Africa, and how can young people get involved in this? And what role can development aid play in this?

The 25th of April, 2016, in Amersfoort, in an interesting discussion evening organized by the Scientific Institute of the Dutch political party SGP, I was allowed to speak about this and other relationships between international poverty and agriculture.

by Bertus Buizer (Buizer Advies)     April 26th, 2016     Updated: June 8th, 2016

European agriculture has a direct impact on agriculture in Africa. Overproduction in Europe will lead to lower revenues for millions of farmers. This benefits consumers, even in developing countries. But that is an illusion. Because countries become dependent on imports when farmers can not invest to improve their production. And that leads to increasing consumer prices.

Because of the power of the distributive trade, the supermarket, farmers here know by experience that higher consumer food prices do not automatically yield higher incomes for farmers.

Continue reading...


International Conference Sustainable World Food Supply

In October 2017, around World Food Day (16 October) and the International Day for the Eradication of Poverty (17 October), the Sustainable Food Supply Foundation will organize in the Netherlands a two-day international conference.

Aim of the conference is to stimulate a broadly supported vision on a sustainable world food supply that is based on the interest of farmers as well as on the environment and biodiversity.

Divided on the themes: sustainable agriculture and ecology and ecosystem restoration, sustainable food, water and energy supply, economic and social benefits, food sovereignty and land rights and socialisation of agriculture, projects from Asia, Africa and Latin America will show that a sustainable approach to the region works, motivates people and is beneficial in many ways.

The following video clip for instance shows very nice how the quality and yield of rice easily can be improved : System of Rice Intensification (SRI). It is from the 'Better U Foundation' (BUF), an initiative of actor Jim Carrey in the context of the global food supply.
BUF was established in 2005 and supports sustainable innovations which transform people's daily lives.

During the conference initiatives, activities, businesses and people from these parts of the world will be associated with Dutch companies, organizations and governments, both during and after the conference. Lasting relationships between various partners are facilitated and continued through a specifically for this purpose developed website www.sustainablefoodsupply.org.
Dutch companies, industries, research institutes and consultancy firms have the opportunity to present their expertise and techniques at the to the conference linked Table Top Info Market.

The working language of the conference is English.

Photo credits: Buizer Advies


Lecture on organic farming, combined with an adequate food supply

At the invitation of the student association Kairos, founded in 2014 by honors students of the VU University and the University of Amsterdam, Bertus Buizer gave a lecture on whether it is possible to combine organic farming with an adequate food supply.

Lecture by Bertus Buizer for students of the University of Amsterdam and VU University in Amsterdam - Photo: student association Kairos

In his lecture Buizer has made a link, among others, with the history of the Dutch and European agriculture from immediately after the Second World War and with current developments and challenges in agricultural policy.

It also discusses the negotiations that are currently going on a possible free trade agreement (TTIP) between the European Union and the United States.

The hall was packed with students and the discussion that followed the lecture was very animated.

The lecture can be found here.


Seed Freedom and Food Democracy

An Open letter by Dr. Vandana Shiva to Prime Minister Modi and President Obama from democratic, concerned citizens of India and the US

Dr. Vandana Shiva

We, as concerned and democratic citizens of India, and the US, welcome the...



Report survey and workshop (BioVak Zwolle):
žLocal varieties; the right variety - location - grower conceptÓ
Bertus Buizer & Kitty de Jager, December 2012

Breeding of crops, among other things led to increased production, more uniformity, mechanisation and žglobalÓ varieties with outstanding performance. At the same time we face al loss of biodiversity, increased pressure on the environment and higher levels of pests and diseases in our crops.

This leads to great opportunities for example for breeders to breed žlocalÓ next to their žglobalÓ varieties. Varieties developed in and for a specific region!! These will be better adapted to local conditions (soil, climate, etc.), better to grow in balance with their environment and therefore less polluting. A žlocalÓ variety, produced in his own region by organic growers, gives the region its own face. A žlocalÓ variety is also attractive to local consumers and strengthens the connections within the region.

From concept to reality:

The implementation of the concept raises some important questions:
Ô How do we fill in this beautiful picture and make it reality?
Ô How can this be achieved efficiently and with limited resources?
Ô How can we combine organic farming experience, new breeding techniques and knowledge, genetic resources and consumer's wishes?
Ô How can a grower determine which variety suits best in his situation?
Ô How can a breeder obtain data about his varieties under many varying conditions in different areas?

About all this, Kitty de Jager and Bertus Buizer exchanged ideas with growers, breeders and consumers. First this has been done by a survey, which was held in November and December 2011. Secondly, everyone could give their feedback during their workshop, during the BioVak, the 18th and 19th of January 2012 in Zwolle.

Results of the survey:

At the beginning of 2011 the survey had been send to both organic and conventional growers and breeders. They were asked to fill in some questions about the availability of varieties and their willingness to participate in trails.
Read more ....

Photo: Bertus Buizer in own private garden with organic apples in the background


Large and convenient Breeding Square at BioVak 2011

On an attractive and convenient Breeding Square with a large number of companies, many Dutch nurseries and traders in the plant sector have shown their varieties, which are of great importance to the national and international organic market.
Participants of the Breeding Square Organicseeds.nl offered high-quality propagating material to visitors from home and abroad. They work always to new varieties, which with regard to taste and quality meet the demands of modern consumers within and outside Europe and which comply well with organic growing conditions.

The Dutch nurseries and traders who participate also in the network of prominent Dutch nurseries and traders produce organic propagating material including the following crops:

Vegetables (covered and open cultivation): Leaf vegetables, tomatoes, sweet peppers, carrots, beetroots, cabbage crops, cucumbers, pumpkins
Arable crops: potatoes, sowing onions, set onions, shallots, garlic, cereals, grasses.
Medicinal herbs.
Fodder crops.
Green manuring crops.
Apples, pears.
Soft fruit.
Parkland trees and avenue trees.
Ornamental plants:
Tulip bulbs, flowers, garden plants.

In 2010 we had also a Breeding Square at BioVak. See the flyer for the
Breeding Square at BioVak 2010
There is also a flyer in German, French, Spanish and Italian:
Zucht-Platz auf den BioVak 2010

Place de l'am»lioration au BioVak 2010
Plaza de ennoblecimiento en BioVak 2010
Piazza della raffinazione al BioVak 2010

Organicseeds.nl and BioVak'10 in Organics Special 2009 of AgroPress

Varieties and seedlings exhibition at November 5, 6 and 7, 2009 in Bant, Emmeloord, Joure and St.-Annaparochie (Netherlands)

The photos cover the propagating material for the organic crop production.

Agrico / Bioselect

Van Rijn KWS

HZPC / Bonna Terra

C. Meijer


Den Hartigh

30 June 2009, Open day Organicseeds.nl and Organic research at Munnekezijl (in the north of the Netherlands)

BioFach 2009

From 19-22 February 2009 the World Organic Trade Fair BioFach 2009 took place in Nuremberg (Germany). In this authoritative international fair for organic products Organicseeds.nl was also present with a stand in the pavilion of the Ministry of Agriculture, Nature and Food Quality. Organicseeds.nl represented there the participating Dutch nurseries and traders. They can provide high-quality propagating material for a large number of varieties for the biological field and horticultural crops and nursery products for organic fruit, avenue or park trees and ornamental plants.
Below you will find a photo impression of Organicseeds.nl on the BioFach in Nuremberg.

BioVak 2009

On Wednesday, January 21 and Thursday, January 22 the BioVak 2009 has taken place in the IJsselhallen at Zwolle (Netherlands) with over 150 exhibitors. This leading trade fair for organic agriculture, nature, food quality and distribution has been opened by Her Royal Highness, Princess Margriet. There were more than 5.000 visitors, mainly farmers and cattle breeders. On the BioVak there was also a Breeding Square, where 16 Dutch nurseries and traders provided information about their varieties for organic crops. The visitors of the Breeding Square could also participate in tastings. The Breeding Square and tastings had been organized by Buizer Advies in the context of Organicseeds.nl. So did the workshop on "New varieties for new conceptsÓ, which took place in addition to the Breeding Square and attracted a great deal of attention.

Her Royal Highness, Princess Margriet, at the tastings on the Breeding Square