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I have a trailing geranium in my conservatory. The leaves start off healthy, then go patchy yellow and finally brown and die off. I have not had many flowers this summer. Can anything be done?
Yellow leaves normally mean overwatering.
There is no such thing as geranium blight-it is just a sign of over-watering-they will survive quite happily with minimum watering
Yes, I agree with Geoff - there's no such thing as geranium blight, they're just too wet.
Cut down the watering so that your plants are almost bone dry before watering again, and then only give a little water.
I am very careful not to overwater and have had this geranium a couple of years. In previous summers I have had no problems and have not changed my watering regime.
Maybe it's starving then. Have you re-potted or freshened up the compost in the time you've been growing it?
Also, in such a cool, sunless summer, it will have needed less watering than usual so maybe it is, after all, just over watered for the conditions.
I agree with Obelixx. You say you have not changed your watering regime - but one of the secrets of successful gardening is to understand the individual requirements of each plant and adapt your cultivation techniques according to the condtions.