Hydrangea macrophylla ‘Nigra’
synonyms: ‘Cyanoclada’, ‘Kuro jaku’, ‘Mandschurica’
Imported from China to USA by E.H. Wilson in 1853.
Inflorescence: Small mophead flowers, 120mm across, which are cream when newly opened, maturing to a rich lilac.
Colour in neutral soil: Lilac
Colour in acidic soil with Al present: Pale to mid-blue
Ray florets: 4, 5 or 6 sepals, hardly overlapping, entire. 55mm diam.
Zones: 6 to 9 Size: Large (to 2m).
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. 180mm l x 105mm w.
Distinguishing features of this cultivar are its dark purple to black stems and petioles, and its deep red pedicels and peduncles.