The hot pinks and magentas of the celiosa drew me over to the rows of plants at the garden center. In the afternoon sun, they lived up to their name, which comes from a Greek word for flame. A steady hum rose up as I stepped closer. Dozens of bumblebees and honeybees flew around and within the masses of blooms. I watched a bumblebee, the B-52 of the bee family, hover and then land on one especially promising specimen. Look carefully and you can see the pollen clinging to the bee. The bee was too busy to care about me.