I have a small garden bed to the south of a south wall, so morning sun and very late afternoon summer sun, and the summer sun is nearly overhead but it is shaded most of winter, I have a small myrtle nearby etc, was looking at planting a small and slim tree / shrub (to left) that doesn't mind nearly all shade while growing but can handle midday Adelaide summer sun if it reaches past 1.7 metres high. It needs to be narrow. So was wondering if a paradise (slim) camelia was an option? I could probably only dig down 30cm if I need to change the soil (Adelaide plains clay another 20-30cm down). It would replace the blackberry in the far left. The myrtle is in the middle and a guava (that catches morning sun) to the right. The others are mostly temporary.