Hydrangea macrophylla ‘Blaumeise’ may turn pink on alkaline soils, but this cultivar is considered one of the best ‘blues’ if fed with aluminium sulphate.
Inflorescence: Lacecap, 130mm diam. Vigorous growing shrub with large flowerheads.
synonyms: ‘Teller Blue’, ‘Blue Sky’, ‘Armor’, ‘Blue Tit’, ‘Blue Counter’, ‘Blue Titmouse’.
Introduced by the Federal Research Institute for Horticulture, Wädenswil, Switzerland, in 1979.
Zones: 6 to 9
Size: Medium (to 1.5m).
Color in neutral soil:
Color in acidic soil with AI present:
Ray florets: 4 sepals, slightly serrated, overlapping, 60mm diam.
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 110mm w.