Hydrangea macrophylla ‘Mariesii Grandiflora’ is a small, bushy, deciduous shrub. It bears large, flattened, white lacecap flowerheads surrounded by large, white ray florets.
Inflorescence: Large lacecap flowers, 180mm across, with huge ray florets.
synonym: ‘White Wave’
Bred by Victor Lemoine, Nancy, France, in 1902.
Zones: 6 to 9
Size: Large (to 1.5m).
Color in neutral soil:
Color in acidic soil with AI present:
White (no change)
Ray florets: 4-5 sepals, serrated, overlapping, 80mm 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. 140mm l x 80mm w.