You might contact James Fennell who works for the Salters and has tried to get this mess of unregistered cultivars registered. He should be able to tell you! Regarding your cultivar name, you may have to change the tag if it has been registered by another name. The registrar sent me a long list of the Salters cultivars last year that had been registered and several had had the first choice names rejected. If I get a chance, I 'll try to look back through the hundreds of emails to see if this one is mentioned.
