You can visit Dijkspark and the Raising Doubts installation daily. The seedcard however are only for sale during opening hours of Mediamatic ETEN, which you can find here.
The Raising Doubts seedcard costst €5,00 and consists of 60 different flower seeds. The seeds you don't use are for u to use at home. This way you can bring a piece of the installation home and the rest of the seeds will spread out over the city.
Please note that the evaluation print is only available during openings hours at Mediamatic!
Click here for the directions to Mediamatic, Dijksgracht 6.