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'Madame Alfred Carrière' rose Reviews & Comments
Discussion id : 122-695
most recent 3 JUL SHOW ALL
Initial post 21 JUL 20 by Gdisaz10
With this rose i have every year a problem with mildew
Reply #1 of 3 posted 22 JUL 20 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.”
Reply #2 of 3 posted 22 JUL 20 by Gdisaz10
Ok, thanks. I'll try.
Reply #3 of 3 posted 3 JUL by Gdisaz10
Even this year, despite the special care and attention, the rose presents the problem of powdery mildew and black spot. Numerous branches have dried up and I had to prune it drastically. Out of curiosity I tried to put another one in full sun, but alas it presents the same situation. The worst rose in the garden! As soon as the temperatures allow it, I will have it replaced with an Allister stella gray.
Discussion id : 119-386
most recent 31 DEC 19 SHOW ALL
Initial post 13 DEC 19 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
Reply #1 of 7 posted 28 DEC 19 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
Reply #2 of 7 posted 29 DEC 19 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!!!!

Reply #3 of 7 posted 29 DEC 19 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!
Reply #4 of 7 posted 29 DEC 19 by Jay-Jay
A red colored stem like this flower-stem?
Reply #6 of 7 posted 31 DEC 19 by raingreen
Thanks Jay Jay Happy New Years to you and yours!!!! Yes, it's the same color as in the photo. Nate
Reply #5 of 7 posted 30 DEC 19 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.
Reply #7 of 7 posted 31 DEC 19 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%).
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!
Reply #1 of 1 posted 16 NOV 18 by Patricia Routley
Altered. Thanks Jay-Jay.
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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