I am selling native Phragmites common reed grass tubes for the culture of Mason Bees (in packets of 30 for $15.00), harvested sustainably from my farm in Metchosin. They are the most efficient type of tube for attracting mason bees and for reducing parasite infection. For evidence see: (See https://masonbeesforsale.com/choosing-nesting-materials/) . I also demonstrate how you can make your own bee houses at no cost out of simple re-purposed and recycled materials. see http://www.gfletcher.ca/?cat=2 If you are outside of the Victoria area there is information on the website on how to order tubes by paypal, if you cant pick these up at the farm.