I have trouble understanding the "sun requirements" listed on most websites. I have a flower bed that's full sun in spring, part sun in summer (under crepe myrtles) and mostly shade in fall? Most of my beds change lighting throughout the season because the sun is moving east to west in front of my south-facing house. Does that make any sense? Does that mean I have to change my entire garden each season?
How do I shop for plants under those circumstances?