Lifecycle of a mason bee

In the spring, male and female bees hatch out of their cocoons. The males hatch first, and scent mark the outside of the tube so they know where to return to find the females. After mating, the males have completed their lifecycle. The females then spend the rest of April and May collecting nectar and pollen, pollinating your yard, and laying their offspring in the nesting block.


By June, the adult mason bees you hatched in your yard have completed their lifecycle. Behind the mud plugs are mason bee eggs, which will develop from egg, to larva, to fully formed bees in cocoons by September. We bring them into our storage facility in June and store them at 78 F to protect them from predators and ensure high survival rates.


By September, the bees are now fully formed in cocoons. At that time, we will open the nesting blocks, clean the cocoons, sanitize the blocks, and store the bees in a walk-in cooler for the winter. This is their hibernation time, where their body systems slow and they remain dormant in cocoons until the following spring.


In March, the bees come out of the cooler (or if the eggs were laid in nature will emerge from your backyard) and begin to fly around your yard. The next generation has now reached adulthood and will begin their lifecycle process all over again.