Bishops Castle Show

I keep saying I'm going to try these but never see one to buy.

When i used to help my friend Stan with his stand at the shows he used to put some Streptocarpus up with his Begonias and Gloxinias. If i'm not mistaken he used to get the Gloxinias from Blackmore and Langdon, and the Streptocarpus from Dibleys nurseries (can't find one of their books now, but i think it's Ruthin North Wales. Dibleys.com).