What keeps tomatoes from ripening?
What Keeps Tomatoes From Ripening?
Certified GKH Gardening Expert
Normally if tomatoes will not ripen, it is an issue with the temperatures and time. If your tomatoes are getting quite large and you are afraid they will either die or you simply cannot wait, then you can ripen them yourself. Here is more info: https://www.gardeningknowhow.com/edible/vegetables/tomato/how-to-turn-green-tomatoes-red-how-to-store-tomatoes-in-the-fall.htm