Hydrangea macrophylla ssp. serrata ‘Blue Deckle’ is a compact shrub, with prolific flowering from July to September. Towards the end of the flowering season the flower heads turn greyish-green, with the sepals inverting and the underside turning to lilac-purple, giving a remarkable iridescent effect. Commences flowering in July and still produces an excellent display in September.
Whether grown as a ‘blue’ or as a ‘pink’, Hydrangea macrophylla ssp. serrata ‘Blue Deckle’ gives a magnificent and colourful display throughout the flowering season.
Inflorescence: Lacecap, 100mm across. The flowers are composed of numerous sepals, most of which are serrated, although some entire ones are present. The fertile flowers are a deeper colour than the surrounding ray florets.
Introduced by Michael Haworth-Booth, UK, circa 1950.
Zones: 6 to 9
Size: Medium (to 1.25m).
Color in neutral soil:
Color in acidic soil with AI present:
Ray florets: 5-6 sepals, slightly serrated, overlapping, 30mm across.
Leaves: Simple, opposite and deciduous. Broadly ovate to elliptic. Margin: serrate. Apex: acute. Base: obtuse. Venation pattern: penninerved. Texture of adaxial and abaxial surfaces: glabrous on both surfaces, matte on the upper surface. Size: 150mm l x 75mm w.