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| My potted Ambridge Rose buses sent out a flush of blooms when we had a break from the heat. But the heat is back and the plant is showing signs of water stress despite daily waterings. I plucked all of the buds and blooms off in an attempt to retain water in the plant system just on a whim. Does this actually help? The orange bud is Pat Austin, and the deep pink is Souv. De La Malmaison. |
Follow-Up Postings:
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| Ooo, those are pretty. I'm dis-budding, too, since reading that each bloom takes something like 30 leaves to make & support it. We've missed out on the rain so far (congratulations, BTW) & it's still too dang hot. I'm hoping that by sacrificing buds this month I'll get to enjoy an October flush on stronger bushes. |
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| When Lyn G began disbudding her roses to break the reproductive cycle of the Rose Curculio Beetles, she discovered her bushes grew significantly larger and her second flush was amazing. The plants are either going to put that energy into flowering or growing. It stands to reason if it requires the 35 perfect leaves for one perfect flower (some require more, some less), if you prevent flowering and increase the bush size with its correspondingly greater foliage mass, it's going to result in more, and probably better blooms. Isn't that what exhibitors have done forever? Disbud, reduce the quantity of buds, in order to push all the nutrients into ONE flower so the four inch rose pumps out a six inch bloom for a show? What's the difference? Kim |
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| Josh, your pic came up on my Facebook newsfeed via GardenWeb as the Photo of the Day! I just thought I'd share that. Oh, and I sent you an email the other day.... :-) ~Christopher |
Here is a link that might be useful: GardenWeb Photo of the Day
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| Josh, I'm not sure anyone answered your question about whether disbudding would relieve heat stress, and I don't have any concrete information, just the guess that the less the rose has to do the easier it will be for it to withstand heat. Also, the more leaves you have on a bush the less likely it is that the canes will burn. A vigorous bush should also be able to withstand the heat more easily. Ingrid |
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- Posted by kittymoonbeam Sunset 23 So CA (My Page) on Fri, Sep 6, 13 at 15:16
| Mine just keep making more buds when I'm not looking. You think they would just relax and rest but they keep trying to sneak a flower past me. I think it helps. I tried it last year and had good results. Leaving hips on works too for some roses. Ambridge is a great rose. It's my best DA here. |
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| I slept through the science bits of my college course but something about disbudding relieving stress, especially water stress, doesn't sit right. Disbudding for larger flowers or smaller, more numerous flowers) is all about apical dominance and directing energy.........so like pruning.......which always causes a burst of growth.......which would surely put a stressed bush under more stress? My inclination, with a stressed plant, would be to do the least possible apart from watering (and maybe shading) to keep it alive - no feeding, no cutting....and let the plant reach its own equilibrium. But this might be some scam I have convinced myself about to excuse my laziness.....and of course, I have never experienced a southern hellhole of heat in my life. |
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| The plant is going to "decide" whether the stresses it is enduring are too great to survive and react accordingly. If your goal is to create seed, permitting them to attempt flowering and reproducing is what you should do. If your goal is to create as large and as leafy a plant as the conditions will permit, removing the flowers will enable the plants to "decide" whether to just survive (if stresses are too great) or produce new growth with the energy those blooms would have otherwise required. In this "hell hole" heat, when heat, brilliant sun and water stresses increase to that "survival mode" point, the plants don't flower nor do they produce new growth. Until that point is reached, they'll either grow or flower, or both to a limited degree depending upon resources and genetics. You CAN choose which you prefer them to put their energies in to. Kim |
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- Posted by kittymoonbeam 10 (My Page) on Sat, Sep 7, 13 at 17:23
| I don't know if picking off buds relieves stress. Maybe if you have Mozart playing...... |
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- Posted by roseblush1 8a/Sunset 7 (My Page) on Sat, Sep 7, 13 at 17:46
| Josh...... A couple of questions: Do your night temps cool off significantly in your garden ? Is what you are calling water stress seeing the rose look like it is wilting in the afternoon ? If the answer to the two questions above is "yes", you don't have true water stress. What you are seeing is that the transpiration rate ... the loss of moisture in the top growth ... is higher than the plant can pull moisture up to the top growth from the root zone. No matter how well watered a plant may be, if the transpiration rate is higher than the plant can get moisture up to all of the top growth, you will see the rose looking wilted. When your night temps cool off, the transpiration rate goes down and the plant continues to pull moisture up throughout the night. By morning, the plant has caught up and the rose is fine. You can help the plant by spraying it down in the high afternoon heat as the leaves will absorb moisture. Also, the humidity inside the plant is somewhat higher. To avoid disease issues, you want to make sure the plant can dry off before the cooler temps hit. Spraying the plant with water helps make it easier for the plant to survive the high temps, but the plant can only pull up as much moisture as it is genetically programmed to do. Disbudding does help, but if what you are calling "water stress" is just a temporary imbalance for part of the day, the rose is not water stressed in a technical sense. A water stressed plant will start abandoning anything it cannot support to survive, including foliage. Smiles, |
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| ah yes, Lyn, my understanding also. The wilting happens to me because I have a tiny walled garden with a few badly sited plants so, for example, geranium Rozanne always looks shrivelled and droopy in the middle of the day, regardless of extra water.....and invariably picks up by around 4oclock. A sniff of real (longer term) drought....and the leaves are on the ground. Also, I find that plants in general can get by without my intervention. Admittedly, in a temperate climate, but I find that when a plant is not happy (which does happen in my arid, sandy, sunny allotment), there are not going to be any buds to remove. Of course, I stress again, I have never experienced massive temperature or humidity changes which happen in the US. |
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