Herbaceous Tiarella wherryi [Foamflower] Tiarella wherryi is a clump forming herbaceous perennial that grows about half a foot tall and can spread up to 20 inches. The white flowers reach hights of up to 20 inches. The leaves are green and lobe shaped. Tiarella wherryi does prefer moist soils but does not like wet feet, so plant accordingly. Tiarella wherryi aslo does not tolerate full sun.
