1911, 23 May, Royal Horticultural Society Temple Show; Silver Flora Medal (55mm diameter), cased.
1912, Royal International Horticultural Exhibition London; Silver Medal (155mm diameter), lacking inscription, case and associated certificate.
1912, Royal International Horticultural Exhibition London; Diploma of Honour Certificate (158 x 233mm) awarded to Mr J. MacWatt.
1915, Royal Horticultural Society Chelsea; Silver Gilt Floral Medal Certificate for Primulas (158 x 227mm) awarded to Dr John MacWatt.
1922, May, Royal Horticultural Society; Silver Gilt Lindley Medal for Primulas Certificate (158 x 226mm) awarded to Dr J MacWatt.
1924, May, Royal Horticultural Society Chelsea; Silver Flora Medal for Primulas Certificate (156 x 227mm) awarded to Dr MacWatt.
1928, May, Royal Horticultural Society Floral Committee B recommendation (127 x 177mm) for an Award of Merit as a hardy flowering plant for Primula heucherifolia awarded to Dr MacWatt.
1930, May, Royal Horticultural Society; Silver Flora Medal Certificate for ‘Group of Primulas’ (157 x 229mm) awarded to Dr John MacWatt.
1931 National Auricula Society Northern Section; Medal for Collection of Primulas (38mm diameter), cased.