Hydrangea macrophylla ssp. serrata ‘Blue Billow
Hydrangea macrophylla
ssp. serrata
‘Blue Billow’
November 21, 2018
Hydrangea macrophylla ssp. serrata Blue Deckle
Hydrangea macrophylla
ssp. serrata
‘Blue Deckle’
November 21, 2018

Hydrangea macrophylla ssp. serrata
'Bluebird'

Hydrangea serrata ‘Bluebird’ is a compact shrub up to 1m in height. After fertilization, the pale blue or pale pink sepals invert displaying their bright pink undersides.

Inflorescence: Lacecap, 200mm across. Sepal colour is variable from pink to blue, but better if grown as blue. The fertile flowers at the centre of the corymb also changes colour depending on the soil conditions.


Introduced from Japan by K. Wezelenburg circa 1931.


Zones: 6 to 9

Size: Medium (to 1.5m).



Color in neutral soil:
Pink

Color in acidic soil with AI present:
Pale Blue


Ray florets: 4 sepals, rounded, entire, 40mm diam.

Leaves: Mid-green leaves turn red in autumn. 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. 160mm l x 70mm w.

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