Q.geranium flower turns brown before fully opening
As the flower buds start to really open, the flowers turn brown.
Downtoearthdigs
Answered on June 9, 2015
Are the plants receiving adequate water?
To much or to little could be the cause.
Here is a link to refresh you with geranium care.
https://www.gardeningknowhow.com/ornamental/flowers/geranium/geranium-care.htm
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