I am no expert but do you have RRD there in Australia? Also did you recently fertilize or spray for mites? Did anyone use roundup near your bush? Again, I am no expert. Here is an article on witches broom and RRD. witches broom and rrd

As far as I can tell, we dont have RRD in Australia. So far...

No..nothing sprayed at all, not even aphid/fungal spray. And Roundup is banned in the garden- I grow vegies all around the place. All the roses are pots, and they're actually jammed pretty close to each other (especially as its just the start of spring and they haven't got too overgrown yet) which is why its odd that only Ebb Tide is affected- If it was drift from a next door neighbour I would expect the roses nearest to get some symptoms as well. ( not that its likely- theyre about 25 ft away from the nearest fence, which is solid painted aluminium and at least 6 ft high) I fertilised with long release stuff after pruning them in late July.

Can peach leaf curl affect roses?

I am far from knowledgeable, but gosh it really looks like herbicide damage. I have had only 1 rose of 24 be effected by the spraying of herbicides in my neighborhood, even when it's not my adjoining neighbors doing the spraying.

I'm not sure of the distance, but Round Up can "drift" quite a distance without a windy day. So a Neighbor could spray away from your roses and the Round Up might still get on them. It seems like it was 30 feet, but I can't remember where I found that information - probably somewhere here on Houzz! I don't really think it looks like herbicide damage, at least not what I have had. The Round Up would affect other rose too, since they are jammed together. Watch it to see if it develops into a normal bloom - I have had new growth look like that as a result of weather, etc.

>It does not look like the herbicide damage I have produced on my roses. Roundup damages makes pale, elongated, small leaves<

Part of the new leaves are paler than the rest. And the level of damage you have described would be seen when the exposure is to sufficient extent. In my experience it seems you just have to talk about spraying glyphosate where roses can overhear it and they distort. So I'm not convinced chemical injury can be completely ruled out in this instance.

Otherwise my first thought was bugs. The way to check for this would be using a magnifier strong enough to see mites or thrips.

It looks like cold damage on new growth to me. I get the same look here when we have abnormally early cold or frost. Diane

Yes, OP did mention a "sudden cold snap". But then they have also indicated they are in Zone 10!

Curdle, how cold did it get on those up and down temp nights? Just curious. Diane

Could be a trace mineral deficiency, maybe boron? . There are pictures online that show how deficiencies manifest in the leaves. Azomite could help (but it is quite alkaline and would best be neutralized by rain water)

More likely a symptom of temperatures instead of chemical damage. I see this on my roses in the spring and fall when the nights can be very cool. As another poster said, herbicide damage looks very different. Trust me, I've seen it many times.

My roses have had a similar appearance when it becomes hot because the bug/ insects that over wintered began their attack. Unless there has been uncharacteristic cold weather, my guess is that your temperatures rarely dip below about 35 degrees F? This cold alone should not massively impact most roses, even the Tea roses....but ...temperature fluctuations can cause roses to be a little wonky.

Thanks for all the advice, guys :)

No- would be unusual to get anything lower than 35 F even in winter Desertgarden. There can be a few odd frosts, and we are supposed to get them up until the end of September, but not many as I'm relatively close to the coast.

Our "cold snaps" arent really all that cold compared to the ones most of you experience by any means, Embothrium ! :), but I do notice weird growth patterns when the weather fluctuates so quickly this time of year. In the last week its been anywhere from 46 F at night to a more constant 62F during the day with a blip up 72F today, lovely weather, but its going down to 51 tonight, and we are forecast rain for the next few days... (and thats another thing..a lot of the new growth was going all droopy today because of the warmer weather, but on checking, the pots were still plenty damp under the first 2 cm of soil.) Grr if it gets much warmer this early they will fry:(

I'm thinking it is temperature related possibly linking to chemical imbalance ( if I plant tomato seedlings before Sept. they invariably start to show typical strange veinings in their leaves- I assume the soil is to cold for them to get the nutrients they want before then). Havent noticed any thrips so far but then theres only been about 5 actual blooms yet.

What would you describe as too much of a fluctuation Diane? I find it interesting to compare as my experience isn't that wide- Lived in London for 6 years (a lot colder than here, but seemingly "steadier" temp wise, and the seasons seemed much more distinct) .

even 46 degrees could cause this. I have some roses that get bullhead blooms which are distorted blooms that become affected by the cold. When blooms and leaves are being formed, they are very susceptible to cold temps, even up to 50 degrees.

I believe it is weather related as many others have theorized in the Roses Forum. It being spring in Australia, the weather change seems to me to be the most likely possibility. Why Ebb Tide, and none of your other roses? Who knows? It could be a transient trait endemic to Ebb Tide.

If you were in the USA I would suspect either Rose Rosette Disease or rose midge fly damage, but the photos you provided are not truly classic examples of either condition. I have not heard of either of the above mentioned PLAGUES being present in Australia, and hope they never will be.

Keep us posted on the progress of your Ebb Tide. Let's hope it is just a temporary condition.

Well, I checked over the other roses pretty thoroughly, and I did notice some similar but much less affected weirdness on bits of Rhapsody in Blue (which is potted over the other side of the back yard, in the middle of another lot of unaffected roses)- both are "blue roses" they both have International Herald Tribune as a pollen parent , so perhaps thats it?

Could be. Certain roses are very susceptible to bullheads, which is cold damage on buds, so I'm sure it's the same with leaves.

Weather conditions are probably the culprit. In most cases that is the cause. Heat, cold, drought or flood can all have affects on the roses growth. And it may look one way this time and then look completely different the next time. Besides the climate the culture will affect them too. Any kind of sprays, fertilizers or soil additives can suddenly cause a problem without ever having done so before. I know you have to be vigilant about RRD here but roses are living things and sometimes they just have anomalies in their growth for whatever reason. That's why it's important to watch them and see how they grow all the time.