Twelve dormant cocoons come in a small cardboard container. Store the container in a safe spot in the refrigerator until about a week before crops begin to bloom. When the nest site has been cleaned and prepared, secure the box of cocoons to the nest site. As the sun warms the nest site, the mason bees will emerge. Emergence can take hours, or several days. Males emerge first, then the females. Osmia lignaria propinqua. Mason bee cocoons can survive down to -10°C. Feel free to contact us if you have any questions at 1-888-804-8820.
Download our Mason Bee Care-sheet.
Cocoons will arrive in a package that measures 10cm wide x 8cm tall x 10cm long.
3 or more sets of 12 receive 20% off
12 or more sets of 12 receive 35% off
Mason bee cocoons ship from December to end of February only.
Seasonal item shipping: Items shipped at specific times of the year such as garlic, potatoes, onion sets, asparagus crowns, mason bee cocoons, nematodes and flower bulbs require special handling. They will be shipped separately as a new order with the applicable regional shipping charges applies. Whenever possible, we will combine you orders to minimize shipping charges.
Order now for 2021.
Ships by Xpress Post only.