March in New England brings the earliest signs of spring. Plants that have been dormant all winter start to wake up and so do insects. As temperatures rise, native ground-nesting bees are among the ...

DENVER — On warm days, I love opening the windows and going outside to poke around the garden and look for signs of spring. Sure enough, we have flowers. Snowdrops and crocus are already in bloom.

On calm March afternoons, it is common to see a few bees stretching their wings and scouting around. On pleasant March days they are very active. The Carolina jasmine, hyacinths and jonquils are ...