I have a calla lily in a pot indoors and the flowers are turning brown on the outer edges.what should I do
That's normally what follows the flowers turning green, and it means the plant is entering a dormant stage. If yours didn't turn green first, another possible cause could be that the edges of the flowers are getting sunburnt from too much direct light (if you're in a warmer climate). Keep in mind even though the plant might be indoors, glass magnifies the heat.
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