It's called "Blossom End Rot." Look at the entry on our blog entitled "Why are my tomatoes turning black?" Visit our blog at- Good Luck and Happy Gardening from Cathy and Neal!
Your chances are very good. Ours usually keep setting fruit until the first frost. The plants will start to loose their mid-summer luster, but they will be fine. You can ripen the last ones inside, use them for fried green tomatoes or use them in any...
We always water our indoor plants in two stages. If you let the soil get dry, it will shrink away from the sides of the container and run off as you have experienced. We will give the plants a small drink and then another a few minutes later. The fir...