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Questions, Answers and Comments by Category
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I've noted a number of new rosarians on HMF and thought I'd post some pictures of what heat can do to roses. We've had high 90's to low triple digits for nearly a week. And some of the roses look really ratty, while others don't seem to mind.
Leander has no color. The heat has taken my lovely apricot blend to white.
If you look at the edges of the spent blooms on Bridal Shower you'll see some browning. This isn't thrip damage, it's from the heat.
O'Rilla looks a mess with her petals all faded by the sun.
Cherry Parfait does pretty well, though if you look you'll see where the edges of the older blooms are crispy.
Double Delight is misshapen, though you can still tell it's Double Delight
All of this is normal with the onset of high temperatures. The good news? Some roses don't seem to notice, like Electra,Tahitian Sunset.
Keep your roses well hydrated, feed them and when the temperatures cool the roses will recover and give you a good flush.
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Thank you, Wendy. We are experiencing triple digit temps, too and altho' I have been watering my roses daily, I did wonder about feeding them. I am quite content to wait until the weather is a lot cooler as I don't want to encourage new growth.
Smiles,
Lyn
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#3 of 7 posted
11 JUL 07 by
Wendy C
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In this zone I don't feed after August. In this heat, many won't grow any way. It is sort of like feeding granular in early Spring.. then it's there when they need it. If I were in the desert, I wouldn't feed until the temps cooled.
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Wendy..........
I want to prepare my roses better for winter this year by feeding them a rose food with zero nitorgen. I am looking to feed the plant and the root system and not add any new top growth to be destroyed by our mountain winter. I had planned to use this approach in October. Your zone is much, much colder than mine. Do you think this will help the roses over-winter more successfully ? I had more dieback this year than in previous years and I think it is because I cut back feeding too soon. So I am trying to develop a Plan B.
Smiles,
Lyn
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#5 of 7 posted
11 JUL 07 by
Wendy C
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Lyn, we all experienced more die back this year than normal. Did you experience the Easter freeze there? Mine were all just peachy until the freeze hit. blank stare, then it was a mess.
I don't think nitrogen is necessarily a bad thing, too much, well that is a problem. My soil is so well drained, and over abundance of anything isn't generally a worry.
This year, about 8-6 before growing season I put down granular lawn food. The rain worked it in and they have done pheonmenal all things considered. Perhaps that would be an option for you as well.
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This is GREAT! Exactly the of type experience we need added to HMF. Thank you again!
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#6 of 7 posted
11 JUL 07 by
 Cass
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Wendy, how are you so lucky not to have thrips?!?!
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#7 of 7 posted
11 JUL 07 by
Wendy C
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Oh I have them. Little blighters like to bite me when I'm dead heading. They don't seem to cause many problems though, when they do.. I spray.
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