I saw these beautiful flowers on a visit to North Yorkshire.
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Looks like P.suffruticosa so put it on please Fenwickfield.
Thank's Hazel,shall do.I had a look in my old Royal Horticultural Society book and your right,not something I have ever grown as I find the flower's are a bit to big and showy for me.
Lat/Lng: 54.2887, -1.5947
OS grid ref: SE264881