Robuta

https://www.rhs.org.uk/plants/312890/spiraea-japonica-magnum-rose-(-brolanspi-pbr)/details Spiraea japonica Magnum Rose ('Brolanspi'PBR) | Japanese spiraea [Magnum Rose] Shrubs/RHS spiraea japonica japanese shrubs magnum rose pbr https://www.rhs.org.uk/plants/54862/spiraea-japonica-var-fortunei-ruberrima/details Spiraea japonica var. fortunei 'Ruberrima' | /RHS spiraea japonica var fortunei rhs https://www.rhs.org.uk/plants/80099/spiraea-japonica-dart-s-red/details Spiraea japonica 'Dart's Red' | Japanese spiraea 'Dart's Red' Shrubs/RHS spiraea japonica japanese shrubs dart red rhs https://www.rhs.org.uk/plants/180775/spiraea-japonica-snow-cap/details Spiraea japonica 'Snow Cap' | /RHS spiraea japonica snow cap rhs