There are about 140 mason bee species in North America. Some have dull black and yellow striping, while others are blue-black or green. They are solitary nesters, laying eggs in a series of mud ...

Mason bees use mud to make their nests. To create a source of mud in your garden, dig flower beds so that they can gather this important nest-building material. Red-tailed mason bees only nest in ...

BOTHELL, Wash., March 4, 2025 /PRNewswire/ -- As winter thaws and temperatures rise, mason bees will soon emerge! Once temps reach 55°F+, these essential pollinators wake from hibernation ...