I've got three teracotta window boxes I'm finally ready to fill! They will sit on West facing sills, pretty sunny spot in the afternoon/evenings.
I've read that thyme would be good, and am looking at heliotropes.... I'd like a blue/purple/white and lots of green scheme.
I also need them to be pretty long flowering, and hardy as I'm not naturally green fingered!
Please help me! Do I need crocks in the bottom? What type of soil??