Hydrangea macrophylla ‘Rotdrossel’ is one of our top hydrangeas due to its intensely coloured lacecap flowerheads in either dark red or purple.
Inflorescence: Lacecap with large flowerheads,190mm across, brilliant dark red to purple-red.
synonyms: ‘Red Wing’, ‘Teller Red’
Bred by the Federal Research Institute for Horticulture, Wädenswil, Switzerland, in 1987.
Zones: 6 to 9
Size: Large (to 2m).
Color in neutral soil:
Color in acidic soil with AI present:
Ray florets: 4 large sepals, slightly dentate. 70mm diam.
The photo is of a two-year-old plant still getting established. Twelve months later, with its roots now fully developed and capable of absorbing aluminium from our slightly acidic soil, the flower colour has changed to a reddish-purple.
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. 170mm l x 160mm w.