probably

Thanks. I'd like to put up a house for them.

it is real easy to make your own just drill 5/16 holes in a 4x4 or better 6x6 and hang it up don't use pressuretreated or cedar

Gardenbear, Friends of Earth will send you a mason bee house if you donate $50. Their email is foe@foe.org. If you email them, you can find out a lot more. I just got an email from them a few days ago. That's why I wanted to know if there were mason bees in SE Michigan. I'd never heard of mason bees. Turns out they're non-stinging super pollinators. They often pollinate a thousand blossoms each day! You could probably google Friends of Earth to find their website. Pestisides are what's killing all the bees.

Suzz, I'm allergic to bee stings but with the Mason bees I know that I can be around them and not worry.

mason bees are able to sting but you really need to bother them to get them to do it

If you've got a half hour then this video from Growing A Greener World has a lot of info, including making a wooden mason bee house and rolling paper tubes for them to lay eggs in.

Rodney

Thank you Rodney. I will find some time to watch the video. Sounds excellent. Suzz

I've got Mason bees, the white clover in my front lawn is in bloom and they were all over it, my back lawn should start blooming in a few days, so I ordered a house and some tube for them all they need to do is move in. I forgot that Mason bees love clover and thats why I let it take over my lawns.

I'm so happy to hear this.

Mason bees are native to the entire north American continent. It is usually easy to attract them by building a mason bee house. You can become a "mason bee keeper" by building or purchasing a mason bee house that allows appropriate cleaning and larva protection from the elements or you can just build a new house every couple of years. The easiest method is to start with a 6-inch thick block of untreated wood (not cedar), perhaps 12-18 inches long and perhaps 6 inches wide. Drill your holes about an inch apart, 5 inches deep, 3/8ths inch in diameter. Screw a cover on the top made from a 1 inch plank such that you have a 1-2 inch over hang and do the same for the bottom. Use some wire with holes at least 3/8th inch diameter but not larcger that 1/2 inch to cover the face of the house so that birds cannot eat the bee larva. Hang the house at least 3 feet off of the ground facing south so that to face of the house is exposed to the morning sun in the spring. Build it and they will come.

Thanks, Charlieboring. I didn't get the house until a few weeks ago, and so far no bees. Maybe it needs to go up in the spring? Suzz