http://www.rotsplantenvereniging.net/http://www.rotsplantenvereniging.net/zadendistributie.html Their seed distribution page speaks of both the chance for non members to get seeds and also for new members to get 20 packets free - if I read that correctly - worth breaking out the google translate and investigating !
"The seeds distribution occupies an important place in the NRC. It is often the only way to get to certain plant seeds. Every year in mid-November issued a seed list.
The seeds are collected by our members. All entries are centrally recorded and stored. In the November issue of Folium Alpinum appears the seed list and an application form. Members can a small fee 20 bags of seed requests from the seed list. The beginning of January, if all the applications have been known, and the seeds are distributed over small bags, the seeds are sent,.
This year, this list contains more than 900 species of rock plant seeds, brought by 46 members.
The seeds after regular seeds distribution (early January) about his being sold on the reading days sales days and other events where the NRV a position. The price is € 0.25 per bag + shipping. For "Non-members" is € 0.50 + postage.
Through this site you can order members and non-members also seeds at the price mentioned above. The seeds can be ordered from Ben Vermeij - b.vermeij@ziggo.nl
The seed list of autumn 2015 is here to give an impression of the assorted element (N.B. remember that many rare and popular varieties of seed distribution may no longer be available).
Note: The missing numbers in the seed list are sold out, therefore always use the most recent edition of the seed list because it may contain changes per day.
For non-members: Become a member and you can now apply for 20 species! Membership details here : http://www.rotsplantenvereniging.net/lidmaatschap.html