From the Walters Gardens, Inc. hybridizing program comes our darkest red flowered selection to date.
Near-black, glossy, pointy buds open to lustrous, dramatic deep red blossoms with a blackish red center and veining. Bright yellow pollen on the red anthers in the center of each blossom pops with contrast. The 8-10” wide blossoms have rounded, overlapping petals with a hint of ruffling on the edges.
‘Heartthrob’ forms a compact, well-branched, rounded clump of mid-green, hydrangea-like leaves. At just 4’ tall, it fits nicely into the back of the border and offers outstanding late summer interest.