The Buttered Rum Heucherella from the Southern Living Plant Collection is an unbelievable helping of decadent, rich color for any landscape or garden! This perennial features caramel-colored, maple-like foliage from spring till late summer. In the fall, the cool weather burnishes the leaves to a lovely rose red. This makes a perfect complement to fall-planted containers. In late spring, this selection produces petite and white bell-shaped flowers that extend from thin stalks above the…