IN THE GARDEN: Beguiling begonias

Talk about shady characters. You'll find an enormous cast among evergreen begonias. They come in an amazing number of shapes and sizes, with more than 2,000 species and another 8,000 hybrids bearing flowers ranging from tiny, dangling blossoms to prolific, upright sprays. The leaves, too, may be no bigger than a fingernail or measure 2 feet across, and appear crinkly, striped, spotted or hairy.