24/11/2011 at 15:28
Nice overview, but a few important details were left out. Site the nest somewhere that doesn't get much direct sunlight. Bumblebees don’t manage high temperatures well. Also, you should have at least two ventilation holes in the flowerpot, secured against ants with mosquito netting.
I built my own flower pot bumblebee nest a while ago. More tips about increasing the chances of having a thriving bumblebee family move in, see http://www.renewablesathome.com/ecology/how-to-build-a-bumblebee-nest