This is one of my favorites fall combinations in the garden: Sedum ’Autumn Joy’ and Heuchera ’Green Spice’.
I’ve planeted it in a raised bed that gets 6-7 hours of sun which is on the lower side. Sedum loves sun and would benefit from more. If you can, put it in the sunniest and driest spot possible. The heuchera likes sun to part shade.
The pink sedum has been blooming for a few weeks now and will carry on for a few more. In the winter it will dry but keep its structure creating lovely winter interest, especially combined with the semi-evergreen Heuchera.