https://www.rhs.org.uk/plants/520042/prunus-dulcis-vialfas-(f)/details
Prunus dulcis 'Vialfas' (F) | /RHS
prunus dulcisfrhs
https://www.rhs.org.uk/plants/323220/prunus-dulcis-alba/details
Prunus dulcis 'Alba' | /RHS
prunus dulcisalbarhs
https://www.rhs.org.uk/plants/344460/prunus-dulcis-sultane-(f)/details
Prunus dulcis 'Sultane' (F) | /RHS
prunus dulcissultanefrhs