Hydrangea serrata ‘Seto no Tsuki’ (Mountain hydrangea ‘Seto no Tsuki,’ yama ajisai ‘Seto no Tsuki’)
¥1,600 (incl. tax)
Seto no Tsuki is a natural hybrid of Kogaku-utsugi (Hydrangea luteovenosa) and a mountain hydrangea from Kochi Prefecture, Japan.
It produces single lacecap flowers of a soft pale blue.