Bell peppers

Question

I started growing bell peppers and they have been doing great but today I noticed purple on stem and joints. I read that it can be normal or a fungus. How do I tell the difference and what should I do?

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Answer 1

This is a normal coloration at the joint stems on pepper plants.

Though a fungus can also cause coloration changes; you would also be seeing other symptoms and declining of your plants.
https://www.gardeningknowhow.com/edible/vegetables/pepper/black-stems-on-pepper-plants.htm