A good rule of thumb to remember (not set in stone but a great guide) is that like pale skin, the paler coloured leaves like Lime greens, yellows, and all heucherella and tiarella need more shade from the full sun to stop them burning up!
Richer colours like the reds, oranges, purples and black love full sun as well as light shade. Why not make room in your garden for evergreen hardy plants like these.
These colours can all go in partial shade if you wanted to plant them all together.
These colours can all go in partial shade together.
These colours can all go in full sun as well as partial shade.
These colours can all go in full shade as well as partial shade.
Don’t be afraid to mix and match colours for a truly spectacular look in your garden. As you can see from the first two photos all these can be planted in the same aspect to give you a kaleidoscope of colours!