Figuring out what to grow in the shade is challenge enough. Throw in factors that affect southern gardeners, and the topic becomes as thorny as wild blackberry. Shade varies at different times of day, and gardeners need to take this into account. Shade changes from season to season, too, even within the same yard. In Southern Shade: A Plant Selection Guide, landscape expert Jo Kellum takes the mystery out of the murky parts of the yard. ...