The leaves on our Geraniums are turning red and look like they are dying
Certified GKH Gardening Expert
Over or under watering puts the plant under stress and the leaves can turn red.
Geraniums prefer to be planted in loose, well draining soil.
Exposure to low temperatures can also cause the leaves to turn red.
If the ph of the soil is too low the plant is not able to take up nutrients. Ph should be about 6.5
Here is a link to refresh you on the care requirements.