I planted many geraniums in red and white. Some have done really well while others close by have done badly and in some cases died. The white ones did worse than the reds. They are in a south facing bank, mostly in a compost soil mix.
Why Do My Geraniums Do Poorly
Certified GKH Gardening Expert
Watering is usually the issue with Geranium issues.
Also deadheading the spent blossoms is the best way to keep the plants fresh and blooming throughout the season.
Here is a link to refresh you on the care requirements.