Heucherella TRAILING 'Yellowstone Falls'. $9.00 'Yellowstone Falls' is the other half of the dynamic trailing heucherella duo (be sure to check out Heucherella 'Redstone Falls', too!). Deeply lobed leaves are bright chartreuse and marked with crimson splatters. Heucherella 'Yellowstone Falls' makes a brilliant 6" tall groundcover or a unique spiller in a container or hanging basket...imagine the possibilities! Blooms with short spikes of white flowers.