The front of my house has stairs leading to the front door. The stairs are about three feet wide and there is planting space at both sides of the stairs and the space is 1 foot wide on the left and about 2 feet wide on the right side. There are walls on both sides of the beds. The left side gets about three hours of sun and the right side gets about 8 hours of sun. Half of the space of the beds gets full shade because there is a room above them so half of the beds are full shade, a quarter is partial sun and another quarter gets full sun. What can I plant in these beds that will look good all year here in zone 9. The slope is quite steep and I don't want to plant trees because its a rental. My house is white and I would like to know what would match the color.