With other species juvenile seedlings can sometimes be coaxed into coming to maturity more quickly when grafted/budded on to a mature stock. Is there any evidence that non-blooming seedling roses, such as rugosas which may take a couple of years to bloom, might bloom sooner if buds from the seedling were budded on to some sort of vigorous rootstock in their first season? Just a thought for future experimentation on my part.
I like your thinking
I like it too :0). It is commonplace in apple breeding programs.
You are correct, David. I am familiar with it from apple breeding. I have some rugosa cross seedling that may meet that fate this summer. May try budding them low on some of the monstrous canes on my Rosa rubiginosa. That should at least spur a lot of new growth.