Early one summer evening, my mother and I are sitting side by side on a glider in my backyard, sipping glasses of wine and chatting, staring out at my native garden. At the edge of the patio, square-spotted blue butterflies are laying eggs among the buckwheat’s pompoms of cream-colored blossoms. A mockingbird is in the elderberry, inspecting clusters of ripening fruit. Above the flowering wands of white sage, hummingbirds are skirmishing, dipping and diving, scolding each other with intense chirps as they duel for nectar.