Hybrid "Bluebeard Grand Bleu" flowers (or Blue Mist Shrub, Blue Spirea) in St. Gallen, Switzerland. Its Latin name is Caryopteris × Clandonensis, breed of Caryopteris Incana - Caryopteris Mongholica. – Stock-Foto | Adobe Stock
Prachtspiere - Spierstrauch : Lubera.ch
Spiraea japonica 'Albiflora', Spierstrauch - Bauer Baumschulen AG