I sometimes wonder whether the really hot weather that we get sometimes (days of 38 degrees Celcius/100 degrees Fahrenheit) has made growing tomatoes difficult. I remember a time when we just grew tomatoes and things went well. So in short, I wonder if maybe we need to arrange things so that when we apply water, our soil is watered well. It's very easy to not water enough. When Dad and I did our experiment where I mulched early and he didn't, my tomato plants (from exactly the same batch as his) sulked. They never caught up to his. The soil was too cold. I expected them to catch up eventually and rocket ahead. His crop of tomatoes was on flat soil. Mine were hilled up. Mine were going to outperform his NOW of course, but they didn't. At one stage I even showed him that his plants needed water. He was wondering why they were a little limp. I coaxed him to dig and he found that the water had barely penetrated the lovely soil that we had in his back yard. (Our tomatoes grew side by side that year.) He had quite a number of weeds among his plants. They were lush and green and enjoying life. My tomato plants were writing their wills. I think we make too much of weeds (I mean 'we' in general). I am sure his weeds protected the soil from excessive heat (and drying winds. Though the back yard was quite protected from wind.) Not sure what point I am making. But it's fun to grow tomatoes with your Dad. Even when they win.

Thank you... and no I didn't repot it. Tried taking pics in a shadier spot but my camera wasn't picking up on the dark colors on the leaves as good. I did notice after posting this that if I look at the bottom of the leaves that the veins are dark also. I have only had it about 2.5 weeks so it's still pretty new to me. I know that before I purchased it they had just given it some plant food, mirical grow for vegetables I believe, and I had completely forgot about picking some up, I've never used it before, so I was wondering if that could be part of the problem. It was used to getting some sort of plant food once a week from what they said and then after it came home to live on my deck it hasn't had any, but I get paid tomorrow so I'll be picking some up then. Any suggestions on what would be the best kind to get?

Your favourite houseplant appears to be an unplanted sprouting sweet potato. I can't help with care since I eat them, not grow them. But in the right climate they are large outdoor vines. One thing you can be sure of ... in order to live a plant needs to be planted!

It is possible you have Early Blight. Mine do the same thing. They will be fine until the first full day of high heat and humidity then it just explodes. The first thing to do is get all the bottom leaves trimmed off - I've read that it is fine to take everything off at least the first foot of your plants and even up to 18". Get them in the trash then wash your shears and gloves with bleach. This will help stop the spread. Copper fungicide or Daconil sprays, or Epsom Salt drenches are usual recommendations. I usually start spraying mine about 2 weeks after planting. Good luck with yours.