On one of the recent threads about soil quality affecting color and fragrance there was some great information about potassium and phosphorus affecting blooms, maybe there would be something in there that would help? I only have one dark red, Champlain, which I have been using manure on all summer and it hasn't hurt the blooms. But check katyajini's thread.

I was intrigued by joeywyoming’s suggestion, so I read all the comments in the referenced discussion.

I couldn’t find any info that directly addressed the OP’s problem with deformed and shriveled blooms just on red roses.

Which comment were you referring to, joeywyoming?

Thank you so much for your help

i will have a look and try their suggestions

thanks again

Rifis I was thinking that the general discussion of which colors of roses are affected by which nutrients may have something which could point the OP in a direction to start looking in, I didn't have a specific solution lined up. Sorry!

Out of curiosity, what have the temps been like there? Might darker colors absorbing more heat than lighter colors play a part in the issue? Are the darker ones nearer walls or fences where reflected/radiated heat may be part of it? Just suggestions to give ideas about what also to look at.

I was also thinking the same as roseseek, but you mention purples are doing well. Can you post some pictures?

Also, are you using any systemic insecticides and/or pesticides? They can cause burn when applied in heat or on water stressed plants.

The temperature has been mid 20 . I think the warmest day has been 28 so definitely not too hot they are not subject to reflective heat either. I do feel it is a soI’ll or nutrient issue but that is just a guess.

thanks so much for your input

No pesticides at all as yet. The aphids have not found them yet. neither have the parrots

I will post some pictures on Saturday.

Thank you for your help I live 100kilometers south of Perth Western

Australia

I don't see anything wrong with that bud above. The petals haven't matured far enough to fully unfurl from the bud. I would suggest it requires a bit more heat and time to fully develop, unfold and strut its stuff. I also received Houzz notice you posted two other photos, but only this one shows up for me, no matter how many times I have refreshed nor left and came back to the thread.

Yea there is only one photo. Also which red is it. ?

That red is Fathers love

unfortunately we have just had a stormy day so they are a little roughed.

i will try the other photos again but did experience some IT issues when I tried to upload.

the buds as you advised have now bloomed better. They still do not fully develop before starting to wilt.

thank You alll for your chats and assistance.

Sorry but I will need my sons assistance to show me why the photos will not liad

HU, I generally have good luck uploading pictures using the HOUZZ APP (ie. Not a browser) on my phone. They limit you to 4 photos per post on the app, but don’t tell you this anywhere. The APP automatically sizes down large pictures, which might be why I seem to have less trouble with pictures than people using a computer. First resize your pictures on the computer, as many people here have reported this works.

That does not really explain how with my same system (MacBook Pro) I can only load 4 photos when I could recently upload 10 photos. No changes on my end. That is what is so crazy, Stephanie.