Yep, not to mention if they start to breed new cultivars using...

Yep, not to mention if they start to breed new cultivars using molecular markers and modern day molecular bedding/ characterisation techniques. It may have been grow for a millennium but we've never had technologies that we've got today. "Hey this plant has double the flowers of that one next to it"! "Cool, sequence it's genome and transcriptome and find out why, then look for that same trait in these other cultivars".