Digger--you want them 6 inches because they lay females in the back of the tube, for protection, and males in the front. If the tube is too short you will get mostly males next year. I know they like Dandelions and a bush called Pieris. Good luck and happy gardening.............Tom

Digger,
I noticed HOney bees loved my Oregano & 4 nectar, & Gaillardia 4 pollen. I have tiny garden. Do know much about NW bee plants. Guess fruit trees are their specialty in the Spring.We're going to make or buy OM bee houses this year.

al_compost

Digger,
WE've made them all 3" long in cedar for our church's property. That's what we've read is the minumum.They're are quite rare aroung here. I've seen 2 males since 4-06-06.

ALbert Romerofinley@yahoo.com

Alberto1444