It's about, I think, 21 days for an adult worker bee. What you want to do is try to get your package to sustain itself until you get some young bees. Then the difference is just almost surprising, because you can see these little young bees running around the hive. We see it in our wintered hives as well when we pull them out of the buildings and set them down. When you get that first hatch, it's quite impressive. It's “Oh, we have young bees.”
