Teen Chef Madi cooks home made bread, artichoke dip and sun-dried tomatoes. Video Rating: 0 / 5 Question by Melissa T: Green tomatoes to red?…..? I have at least 25 tomatoes growing all over my tomato vines and was wondering how long it takes from them to change from green to red. For instance, have one in particular that is pretty large and has been about this size now for over a week but it is still green. How long does it take from the first sprout to their color change? (By the way, I… Read Article →