Hydrangea serrata ‘Hokkaido’ is a medium-sized shrub with very attractive, neat flowers in either pink or blue depending on soil type. By the end of the flowering season, the flowers will have aged to a deep red.
Inflorescence: Lacecap, 130mm across, with sky-blue fertile flowers and sky-blue ray florets.
Zones: 6 to 9
Size: Medium (to 1.5m).
Color in neutral soil:
Color in acidic soil with AI present:
Ray florets: 4 sepals, rounded, entire, overlapping, 30mm diam.
Leaves: Simple, opposite and deciduous. Light green, turning red in autumn. Elliptic to ovate. Margin: serrate. Apex: acuminate. Base: attenuate. Venetian pattern: pinnate. Texture of adaxial and abaxial surfaces: rugose, glabrous, slightly glossy. Leaf size: 160mm l x 80mm w.