Hydrangea macrophylla ‘Horwack’ PP25,577

synonyms: Next Generation™ ‘Pistachio’ (Ball Ornamentals, USA), Forever & Ever™ ‘Pistachio’ (Forever & Ever Plants, USA), ‘Schloss Wackerbarth’ and ‘Glam Rock’ (Thompson & Morgan, UK).

Bred by Katrin Meinl (Jungpflanzen Claus & Torsten Kuhne), Dresden, Germany, in 2006, as part of the SAXON®-Hydrangea hybridisation programme. US patent granted 2013.  Female parent was ‘AB Green Shadow’

Hydrangea macrophylla 'Pistachio'

 

Hydrangea macrophylla ‘Horwack’ is a compact shrub with unusual flower colouring – a great combination of rich chartreuse and pale green.  The unique flowers are globular corymbs, blooming from July to August. Very suitable as a pot plant. This plant is another victim of the confusing international trademarking and patenting regulations.

Inflorescence: Mophead, 130mm across. The flowers are green and chartreuse with a pink or blue eye.  The less numerous fertile flowers can be found beneath the ray florets and have 8 stamens, 3 club-shaped pistils

Colour in neutral soil:                             Green/chartreuse
Colour in acidic soil with Al present:      Green/chartreuse (no change)

Hydrangea macrophylla 'Pistachio'

Ray florets: 4-6 sepals, entire, ovate with broadly acute apex, overlapping, 40mm diam.

Zones: 6 to 9
Size: Small (to 1.25m).

Hydrangea macrophylla 'Pistachio'

Leaves: Simple, opposite and deciduous.  Broadly ovate to broadly elliptic.  Margin: serrate.  Apex: acuminate.  Base: cuneate.  Venation pattern: pinnate.  Texture of adaxial and abaxial surfaces: smooth, glabrous, slightly glossy. 100mm l x 50mm w.