Hello,
I am a big fan of Rosa Moyesii. Specifically the species (or one that is consider the species) in the UK. This is due to the deep blood red flowers. I understand it is a hexaploid. If I were to use a canina rose as pollen parent to make use of the uneven meosis then in theory it would make a tetraploid F1 ( was going to use Rubiginosa as the pollen parent due to the deep pink flowers). The beauty of the theory to me is that the tetraploid if it took would be 3 sets Moyesii and 1 set Rubiginosa. Increasing the chance of getting the beautiful red colours whilst also having a healthy rose background. I understand this is a long term project and highly unlikely. Has anyone played with Moyesii and has any insights?