Geranium Stems Are Splitting Just Before The Flower. What Is This And How Do I Repair?

Question

The leaves are also turning slightly yellow at the base of the plant. It is potted.

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Answer 1

I would be concerned about overwatering and root disease. Repot the plant in fresh soil and a clean container. Examine the roots and cut off any mushy or brown roots before repotting.

https://www.gardeningknowhow.com/plant-problems/disease/treating-root-rot-gardening-tips-for-housplants.htm