Hydrangea macrophylla ‘Regula’
synonyms: H .m. ‘White Bouquet’, ‘Bouquet Blanc’
Bred by the Moll Brothers, Germany, in 1934
Hydrangea macrophylla ‘Regula’ is a strong growing shrub also suitable for pots.
Inflorescence: Mophead with large white corymbs, to 180mm across.
Colour in neutral soil: White
Colour in acidic soil with Al present: White (no change.)
Ray florets: 4 sepals, overlapping, serrated, 40mm diam.
Zones: 6 to 9
Size: Medium (to 1.25m).
Leaves: Simple, opposite and deciduous. Broadly ovate to broadly elliptic. Margin: serrate. Apex: apiculate. Base: attenuate. Venation pattern: pinnate. Texture of adaxial and abaxial surfaces: smooth, glabrous, moderately glossy. 140mm l x 80mm w.