I also have a tube of Mason Bees in the refrigerator and no idea what to do with them, so a little research is in order.
The purpose of a bee house is to attract solitary bees, who are extremely docile and up to three times more effective as pollinators. Some of the most common solitary bees are mason bees, leafcutter bees, and miner bees. Many of these native bees are already a part of the local ecosystem, but providing them with a perfect place to nest in your backyard can improve their lives and yours.
Agenda:
1. Put my bee houses up
2. Release the Mason Bees!
3. Bee House Maintenance