The ruby throats, the only species of hummingbird that breeds in Eastern North America, always come back from Central America at the same moment as my bleeding hearts start blooming. No mystical or evolutionary correlation, just a colorful coincidence: two of nature’s most unusual creations having a moment together. They’re in the tall verbena (above) and elsewhere now.The bleeding heart, Dicentra spectabilis, is hardly the traditional trumpet-shaped flower hummingbirds are said to favor, nor is it red (reportedly their favorite color). It’s just one of the plants in my palette that has prov