Roses forum→Salt burn or going dormant

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Dallas (Zone 8a)
lawnhunter
Dec 12, 2020 12:49 PM CST
I have some New Dawn planted in May that have leaf tips turning brown and eventually turning the whole leaf yellow. It looks like fert burn but I have not fertilized since September and oddly enough that is when it started. Also the spent buds are not producing hips. Any advice is appreciated.


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Name: seil
St Clair Shores, MI (Zone 6a)
Roses Garden Photography Region: Michigan
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seilMI
Dec 12, 2020 4:23 PM CST
Could just be from sun burn or it could be a water issue. How has the weather been there?

Hips only form if the bloom was pollinated. Otherwise they just dry up and fall off. Do you have a lot of bees or other pollinators in your area?
Dallas (Zone 8a)
lawnhunter
Dec 12, 2020 4:52 PM CST
Weather has been 60-70. I was watering daily during the summer but cut back to 2 to 3 times a week since it cooled off. We do have bees during the summer but I have not seen any since I stopped deadheading in the fall.
Name: seil
St Clair Shores, MI (Zone 6a)
Roses Garden Photography Region: Michigan
Image
seilMI
Dec 12, 2020 9:10 PM CST
Do your roses go dormant in the fall in zone 8? If so that may be why the leaves are yellowing.

If you want nice brightly colored hips in the fall you need to not dead head all the blooms on your spring flush. Allow some of them to ripen. It takes between 90 and 120 days for rose hips to ripen and turn colors. The fall bloom is probably too late in the season. The bees may not be around much to pollinate and the hips won't have the needed time to ripen.
Name: Lyn
Weaverville, California (Zone 8a)
Garden Ideas: Level 1 Garden Sages Celebrating Gardening: 2015
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RoseBlush1
Dec 13, 2020 10:42 AM CST
lawnhunter said:Weather has been 60-70. I was watering daily during the summer but cut back to 2 to 3 times a week since it cooled off. We do have bees during the summer but I have not seen any since I stopped deadheading in the fall.


It's very possible your roses are not getting enough water. There is no need to water roses daily unless they are in containers in very hot temps.

Roses need a deep watering at least once a week. A rough rule of thumb for roses planted in the ground is that they get sufficient water for the soil be be quite moist 18" down. Daily watering usually only waters the feeder roots that are located near the surface. Deep watering waters the anchor roots. The anchor roots push moisture up through the whole plant system.

Did you do a perk test when you planted the rose ? If your rose is not draining properly, you will have the exact opposite problem with the anchor roots being too wet. The symptoms on the top growth look exactly the same ... Rolling my eyes.

The second photo shows leaves with brown tips. Sometimes, this is caused by sunburn, but it is also a very good indicator that the rose is not getting sufficient water to support the top growth.

Roses will abandon any top growth it cannot support and will direct resources to the root system for survival.

I'd rather weed than dust ... the weeds stay gone longer.

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