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'Madame Alfred Carrière' rose Reviews & Comments
Discussion id : 122-695
most recent 22 JUL HIDE POSTS
 
Initial post 21 JUL by Gdisaz10
With this rose i have every year a problem with mildew
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Reply #1 of 2 posted 22 JUL by Patricia Routley
The main page says this rose is susceptible to mildew, but I suspect that may be only in some areas. (It does not mildew in my garden). You could try a little more water. In RESOURCES / GLOSSARY / MILDEW Graeme Stuart Thomas has written “Mildew is more often caused by dry soil and damp air than by soil deficiencies.”
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Reply #2 of 2 posted 22 JUL by Gdisaz10
Ok, thanks. I'll try.
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Discussion id : 119-386
most recent 31 DEC SHOW ALL
 
Initial post 13 DEC by raingreen
This developed maroon-purple blotches on the south-facing sides of it's canes after hot dry Santa Ana winds. Location east of Los Angeles, in southern California. I had assumed this was sunscald, but now I'm wondering. Most sunscald I've seen is an ugly dark brown whereas this looks more like a change in pigment. The two plants are being grown under normal rose conditions (well-watered, lots of compost).

Does anyone know if this is a normal, healthy response to hot/dry conditions for this plant, or is it wishful thinking and do I actually have unhealthy sunscald//need to protect the plants more????

Thanks, Nate
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Reply #1 of 7 posted 28 DEC by Jay-Jay
Can You post some photo's of that?
I know these blotches on stems from downy mildew.
Posted some photo's of that at the "Member Comments" on the rose Home Run Discussion id : 89-548
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Reply #2 of 7 posted 29 DEC by raingreen
Jay Jay, looked at your photos of the Home Run canes. Nope, not that. Patches are much bigger and cover the sides of canes facing the sun--north side remains green. Patches are a more pronounced color than the patches on your canes.

Sorry, lost my camera dongle that transfers photos to my computer--will post when I get a new one.

I believe what I'm seeing is "cauline anthocyanin" protecting the canes--just as in Red-twig dogwood developing bright bark colors in full sun in winter. However, with Mme. A. C. it occurred under blasting hot sun rather than icy winter sun. The pigment on Mme. A. C. is also less bright.

Thanks Jay Jay!!!!

Nate
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Reply #3 of 7 posted 29 DEC by Jay-Jay
You're welcome Nate!
And in advance I wish You and the other HMF(family)-members: A Very Good New Year's Eve!
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Reply #4 of 7 posted 29 DEC by Jay-Jay
A red colored stem like this flower-stem?
https://www.helpmefind.com/rose/l.php?l=21.299467
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Reply #6 of 7 posted 31 DEC by raingreen
Thanks Jay Jay Happy New Years to you and yours!!!! Yes, it's the same color as in the photo. Nate
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Reply #5 of 7 posted 30 DEC by Rupert, Kim L.
It would definitely help seeing photos of what you are describing, but I'm wondering if it's the normal winter sun response? MANY of my roses are demonstrating the "purple to maroon" sun side coloring while the opposite sides of the canes remain green. It isn't a disease nor is it "damage", but the normal response to the temperatures and sun intensity. It doesn't inhibit their abilities to perform their functions.
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Reply #7 of 7 posted 31 DEC by raingreen
Thanks Kim! Yes, I'll post when i get the dongle. I'm a beginner still, not familiar with the winter sun response. I believe it occurred after the severe Santa Ana winds (for those unfamiliar, warm, very dry winds) in October. October 31 had a dewpoint of -7 Fahrenheit/-14 Celsius at the garden in question (relative humidity of 3%).
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Discussion id : 114-060
most recent 16 NOV 18 HIDE POSTS
 
Initial post 16 NOV 18 by Jay-Jay
I would say, that the zoning might be altered in 6a - 10b. It performs very well over here!
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Reply #1 of 1 posted 16 NOV 18 by Patricia Routley
Altered. Thanks Jay-Jay.
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Discussion id : 113-765
most recent 28 OCT 18 HIDE POSTS
 
Initial post 28 OCT 18 by John Hook
I think this rose may be closely related to 'Humes Blush'. The scent is very similar along with the flowers.
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