A Couple of my absolute favorites and I know I say that about a bunch of them BUT I really do put these two at the top part of the very long list. Heuchera 'Lime Marmalde' and Heuchera 'Mahogany'. They are sturdy and pretty at the same time. Both do amazing in the shade and Mahogany can take quite a bit of sun. The colors are bold and they both have the greatest ruffly leaves!