Hydrangea macrophylla 'Horheart' boasts blooms with dark, pinkish-red flowers accented by a thin white line along the margin. This small to medium sized plant has strong stems and glossy foliage, and the flowers are good for cutting. H. m. 'Moritzburg' was the seed parent. Very similat to H. m. 'Harlequin' except the sepals are entire.
Inflorescence: Mophead. 160mm across, pink with white margins..
Bred by Katrin Meinl, Dresden, Germany, in 2004; patent granted to Claus & Tosten Kühne GbR in December 2011.
Trade designation: H. m. EDGY™ HEARTS.
Zones: 6 to 9
Size: Medium (to 1.25m).
Color in neutral soil:
Pink with white edges
Color in acidic soil with AI present:
Ray florets: 4 sepals, entire, broadly ovate, overlapping, 52mm diam. Pink with white margins.
Leaves: Simple, opposite and deciduous. Broadly ovate. Margin: serrate. Apex: acute. Base: cuneate to obtuse. Venation pattern: pinnate. Texture of adaxial and abaxial surfaces: smooth, glabrous, rugose. Petiole: 20mm. 160mm l x 95mm w.