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Powdery Mildew on Rosemary

IgrowfromseedIgrowfromseed Posts: 263
in Problem solving
Bad outbreak of powdery mildew on my rosemary. I've removed it from the greehouse where it was too humid and the air too stagnant. Any suggestions on how to help it recover





Posts

  • hogweedhogweed Posts: 4,053
    I've never seen mildew on rosemary before. I would suggest to keep it out in the fresh air. The right advice would be to prune off the affected parts but it looks as though the whole plant has been affected. You can get a spray for powdery mildew but not sure how effective it would be at this stage. You may lose the plant so be prepared! 
    'Optimism is the faith that leads to achievement' - Helen Keller
  • Pete.8Pete.8 Posts: 9,970
    Very unusual, but 1 of mine is very similar this year.
    Planted outside and south facing it was all covered in mildew a couple of weeks back, I gave it a light feed and watered well since when it's put on a lot of new healthy growth. I'll cut the mildewed bits out in a week or so.
    I'm guessing it's the combination of freezing/baking/drought/wet we've had this year.
    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • IgrowfromseedIgrowfromseed Posts: 263
    Thanks for the ffeedback anyone tried bicarbonate of soda?
  • Pete.8Pete.8 Posts: 9,970
    Only for cleaning the fridge...
    I gave mine just a little growmore and a sprinkle of seaweed meal a couple of weeks ago and it's much recovered-

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • IgrowfromseedIgrowfromseed Posts: 263
    Rosemary has been outside 1 day and is already looking better. So far I've just left it alone.

  • BorderlineBorderline Posts: 4,688
    I don't think there is anything wrong with your rosemary, it just needs to be outside at this time of year. Also, no need to water it and keep it in very free draining soil, they should perk up.
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