Gardenweb (UK)
This forum is meant for the discussion of cacti & succulents--how to care for them, recommendations for selections, sources for plants, etc.
http://forums.gardenweb.com/forums/cacti/
Groeninfo Forum
Het onderwerp bloemen en planten tuinforum in het bloemen en planten tuinforum op www.groeninfo.com.
http://www.groeninfo.com/forum/
Henkhallo forum
Henkhallo forum
http://www.hotforum.nl/forum/index.php?name=henkhallo