Flowers of my continuous-blooming op R. helenae Hybrida seedling. Small, cream to pale yellow, strong sweet scent exactly as in the mother. The plant is very dwarf, about 30 cm now, quite sparse growth, dark shiny leaves, no sign of disease. No op hips so far, so fertility may be poor.
Bw,
Jukka
I’m curious what you achievements with R. roxburghii. This year,I made a few cross R. roxburghii with William Baffin. Diploid with Tetraploid. There is a chance something will come out?
I received a few seedlings from open pollination Rosa helenae ‘Semiplena’.P1019537 | OLYMPUS DIGITAL CAMERA | Łukasz Rojewski | Flickr
Maybe it is already known, that Bernhard Mehring had bred a ’ R. glauca ‘Yellow’ syn. R. rubrifolia ‘Yellow’. The breeding year as well as the pollen parent is unfortunately unknown to me and on HMF this creation is not found.
Really cool! I would love to know more about this one. I don’t suppose it descended from Lens’ glauca x davidii line, but I expect a fairly involved pedigree to get both glaucous foliage and yellow blossoms in view of the caninae meitosis.
Also enjoyed seeing that old thread dug up again! (My interests haven’t changed too much!) I wish the names of those posting had migrated along with the posts.
I am looking at on old posting of yours about a Rosa rugosa X R. multiflora cross. Anything come out of It? I crossed Ames#5 X ‘Hansa’ and got a non climbing seedling, non repeating but fertile. It gives me the interest of repeating the cross this summer. Johannes
Bumping this ancient thread (19 years??) again as I would be curious as to any follow-ups or additional contributions/thoughts along this theme.
The time that has passed since starting this thread does make me aware that should I wish to work with new species roses, I need to get moving on that endeavor! Lol.
It will be years before I personally see any momentum working with North American species, but I think that now, and moving forward, it will be increasingly imperative to create species that can handle droughts and deluges, heat waves and cold snaps, etc.
Climate change is only going to get worse and more erratic. With the destabilization of the polar vortex we can expect single digit and negative temps on a regular basis. We’re already seeing increased demand for native plants, and not just for ecological reasons, but also economically they’re just so much easier and cheaper to maintain.
It’s the fact that EVERY aspect of the climate is poised to become more extreme that I find myself wondering if we’ll see an uptick in demand for roses. They’re already more difficult to kill than a lot of other horticultural plants. I initially wanted to focus on dahlias until realizing that they can’t handle the brutal Oklahoma weather. I’m reminded of how r. arkansana was one of the only plants that thrived during the Dust Bowl because of its amazing root system capable of growing 12+ feet down into bedrock.
I’m just getting started with hybridizing so all of my opinions come with a great big asterisk, but even in the deepest, reddest state in the country there is a growing demand for more ecologically symbiotic plants, especially amongst my millennial cohorts.
