Newsletter  (Sep 2018)  Page(s) 16. No. 18.  
 
Peter D. A. Boyd. Scots Roses And Related Cultivars Of Rosa Spinossima.
If desired Scots Roses can be clipped immediately after flowering but no later as flowers are produced on the previous year’s wood except in the truly recurrent cultivars such as ‘Peter Boyd’, where flowers are produced on current year’s growth

Newsletter  (Sep 2018)  Page(s) 19, 20(photo).  Includes photo(s).
 
[From "Recurrent Pimpinellifolias", by Knud Pedersen, pp. 18-20]
I have hand-pollinated as much I could in the scarce spare time that I have from the rose nursery, and so far, some 70 cultivars that can flower from May until frost have seen the daylight. Among these was the new recurrent deep pink cultivar which was named after Peter Boyd. I am very happy that Peter agreed to give his name to this free-flowering and sweet- scented rose that has the appearance of a true ‘Scots Rose’. Peter has done so much for this group of roses. The baptism of Rosa ‘Peter Boyd’ took place on the 26th of June 2018 during the visit to our nursery of WFRS Rose Convention participants on the pre- tour.