Master Gardeners are hosting in their demonstrations gardens a free butterfly Celebration featuring face painting and other kids' activities, fun facts about pollinators, visits with beekeepers and garden tours. The event will be open from 9 a.m. to 12 p.m. at 1402 Band Road in Rosenberg. The event will feature free seed packets and passalong plants as well as milkweed starter plants for sale. In case of rain, activities will move inside.