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Red Bell Peppers #806085
Asked August 13, 2022, 3:08 PM EDT
Isanti County Minnesota
Expert Response
Thanks for them question.
The ripening of fruit such as peppers is a s very complex process. Among other things it is very temperature dependent. Bottom line, and this pertains to tomatoes as well, once day time temperatures exceed 80 degrees for a few days, the ripening process grinds to a halt. Recall the very hot days we had in July. Just keep watering them and hopefully as daytime temperatures start to decline, you will see ripening occur. There really is not much you can do in the meantime. I fear that as the reality of climate warming descends upon us in Minnesota we as gardeners will need to adjust our practices and expectations. See:
https://homeguides.sfgate.com/wont-red-bell-peppers-im-growing-turn-green-red-96236.html
https://dengarden.com/gardening/How-to-Get-a-Green-Bell-Pepper-to-Turn-Red
Bottom line: be patient and good luck