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Rose Mildew - What to do?

Edward.francisEdward.francis Posts: 123
in Problem solving
Hi everyone,

I noticed a few weeks ago a white powdery substance on out rambling Rose - Crimson Shower. I'm guessing it's mildew. Unfortunately I didn't have any Rose Clear at the time so I've been sluggish to spray it. I have now got hold of some and spayed it a few days ago but it's looking quite underwhelming compared to a neighbours. I've included some photos. It doesn't look too bad now in the photos compared to what it was like a few weeks ago.

Any advice on how to save the rose?

It is just about growing into a healthy climbing rose so I want to prevent it spreading to that if possible.

Any help appreciated,

Many thanks,

Ed

Posts

  • GardenerSuzeGardenerSuze Posts: 5,692
    edited July 2023
    I am not an expert on Roses but plants growing next to a wall are often in a 'rain shadow'. With adequate amounts of water mildew would not be a problem. Your rose needs water not expensive chemicals.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • amancalledgeorgeamancalledgeorge Posts: 2,736
    In agreement. Improving the cultivation conditions is the key. A happy plant can fend off most diseases. A good watering and feed when it's healthy once more will help. Most roses come to their own on their third year so it helps to be patient with them. 
    To Plant a Garden is to Believe in Tomorrow
  • Edward.francisEdward.francis Posts: 123
    I thought I'd watered it pretty frequently. Thanks for the tips which I will remember long term. Is there anything I should be doing short term, like cutting it back to prevent infection of other plants? I have to say that after I used the Rose Clear it looks much better.

    Thanks
  • amancalledgeorgeamancalledgeorge Posts: 2,736
    You could cut it down and let it reflush but if they're both well looked after they'll be ok. Perfection is really overrated 🤣
    To Plant a Garden is to Believe in Tomorrow
  • FairygirlFairygirl Posts: 55,117
    It's also about feeding the soil - for any climber. Lots of organic matter to ensure good moisture retention, but it also aids good drainage.
    Anything planted right against a wall will be drier unless it's facing the prevailing weather and you're in a wet enough area.  :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • SalixGoldSalixGold Posts: 450
    Several buckets at a time would be need (perhaps double what you think). I find that homemade garlic spray can work quite well with mildew, though it needs re-applying weekly and after rain. Whizz up garlic cloves in pint of water and leave over night. Strain and dilute. Put in spray bottle. Keep in fridge when not in use. Can work to discourage aphids too.
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