Paeonia Lactiflora. Karl Rosenfield Peony features stunning red, double flowers that are nearly 8 inches across! Each gorgeous bloom begins its display in mid-to-late spring, and includes a subtle hint of yellow at its center for a touch of added elegance. The Karl Rosenfield peony is a herbaceous perennial shrub that has an upright nature with erect stems to hold its spring bloom aloft. Karl Rosenfield is adaptable to variety of soils and can tolerate partial shade.Wildlife adore it, but deer and rabbits don't seem to have an interest in it.