I have yet to experience any damp of problems. Hoping that never changes. Sounds quite soul destroying
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The second comment made me wonder. May I ask how you came to this opinion?
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Marbree hips ended up germinating 9 seedlings out of 14 seeds. All have now been culled, weak/sickly! Will try get more hips and see if I have better luck this year
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The big problem with open pollinated āMarbreeā seedlings is that most of them are impossible to propagate from cuttings: they will NOT make roots.
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Okay so august is underway and fall is comming in a few weeks. This period I hate the mostā¦the selection to keep. I am a sucker trowing them away. So I have 300 seedlings and some it is easy to throw awayā¦ but some flowers are really nice but have blackspot. It maybe causes because of lack of water and my bed of babies the roses are a bit to close to eachother. So in my mind I want to give a lot a second chance. But on the other hand a lot needs to goā¦..which I hate to do. My question to youā¦where do you draw the line? Are you disciplined to discart everything with a little bs like Harkness does? Or do you maybe give a lot roses a better space an wishes it will be better next year?
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Do they sucker from the original seedling?
Not a big seedling production guy and my August is April - May. In early days, <5 years ago l would keep everything no matter what a mangy looking mutt (PM) because they went outside and let nature and its cohort winter do the culling for disease (doesnāt do a good job), and not hardy (nature better at that either 0 or 1 in spring). Sentimental ones l keep. The known hardy ones are planted in beds in back ā¦ wait and see who wins in health and vigour. This approach has shown only one winner - sort of - for them, excluding species. Except even though its a 3-4 ft heathy as a horse once bloomer - l think, it has not bloomed on three seasons. :-)). Good clean as a whistle shrubbery so far.
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Hereās what Iāve ended up with, from about 200+/- germinations!
(Over half those were from OP Rosa rugosa āAlbaā, mind you, and they were whittled down to just THREE fairly-likely hybrids.)
I have 15 āKeepersā for another year of observation, 14 laggards that Iām still awaiting a first-bloom but are otherwise doing well (one seedling from OP āBlanc Double de Coubertā is slow-growing, possibly being a hybrid with āGourmet Popcornā which grew near it, or āIcebergā), and 15 seedlings that are quite pretty & healthy, but not for me (good enough to sell at a yard-sale to somebody who likes it).
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Depends
generally most diseased things die pretty quickly here, a few survive that have a trait/s that isnāt common in my breeding pool so they stick around if they survive (and only get crossed with healthy things, hoping for the best)ā¦.if I had alternatives that were healthy theyād be gone, but sometimes there just isnāt an alternative that fits all the criteria so incremental improvements towards the goal
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For me, too, the strategy depends on certain factors. Seedlings with sufficient air circulation but with rust and black spot infestation unfortunately have to go. I have never seen any real improvement in these cases. I am also strict when it comes to mildew, especially when it occurs early at the beginning of the outdoor season. In these situations, the problem has never changed, but only worsened. However, if mildew occurs on an interesting plant in July and August, it is sometimes simply a water problem. In few individual instances, repotting with fresh substrate has worked well. Otherwise, it could be a temporary thing and, based on experience, can even disappear completely the following year. So these seedlings are welcome to stay and deserve another chance.
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