The planting of rose  (Rosa cv.) bushes in memory of the dead is a well established practice; does anyone know when it started?

The grounds of the parish church of St Peter and St Paul, Kettering, Northamptonshire, have an area devoted to such bushes.  The one shown in the foreground here commemorates Beryl Margaret Thurland (8 November 1930 – 13 February 2012) and Raymond Peter Thurland (16 May 1928 – 24 February 2012).

Photographed July 2018.