Was there something residual in the sprayer that could have done this?

I will see if I can get a picture later. I used a watering can and mixed everything according to the directions. For the epsom salts I just used a spray bottle. Temps have been around 88 the last few days which is a far cry from the mid 90s we had a week ago in central florida. The tomatoes look like something just sucked the water from them leaving them sunken, rubbery, and wrinkled. Gardening is so frustrating in florida i swear.

Ok I hope this pictures work. The plant is a tumbling tom and the tomato is a juliet.

May I suggest you to post the question in Growing Tomatoes forum ?

Regarding your plant, I can only hope that it’s not Fusarium or Verticillium Wilts, because that's bad news.

Salts are hygroscopic. They will draw water through cellular walls and membranes. Just like the ocean 'steals' water from your body when you take a dip, it's possible the solution you used had a higher concentration of salts than what was present in the plants themselves. The water would have been drawn out of the plant and evaporated. Temps like you described would have exacerbated the problem.

I sprayed with epsom salts because various websites said it was good to do when the tomatoes were flowering and showing fruit. Maybe not such a great idea next time. I grow the tumbling toms as an experiment in the hanging pots to see how they do. Considering they have nearly died 3 times and given me 1 tiny tomato I will consider it a failure. I went ahead and sprayed down all the plants with water to dilute any remaining fertilizer or salt and just see what goes from there. At least I will not be making that mistake again lol. This is my first year gardening so I am trying many different things to see what works best. Thanks for your help everyone.

Hmmm - never heard or read of spraying w/ epsom salts - only w/ watering it in around the base of the plants...?

Here's some good info from the UF extension agency on growing tomatoes in FL, if you haven't seen it yet:

https://edis.ifas.ufl.edu/vh028

& I must say, the sun has been blazing hot the last few days - w/ no rain here where I am.

Yeah, people say that you can do foliar feeding of magnesium by spraying epsom salts, but there is little scientific evidence that it actually works. But in general, spraying a strongly hygroscopic salt on foliage doesn't seem that smart, though I guess if it is dilute enough it may not cause problems. Since the stuff is highly soluble, rinsing with water (and perhaps flushing the soil with it as well) will prevent any more damage.

What everyone said about spraying your plant with things.

But also I see this is a hanging basket. At first I thought I was seeing a superimposed image. I bet tomatoes in your yard would do fantastic with out much work. Keep in mind the roots need a whole lot of wiggle room and stability, which is the opposite of a hanging basket. Next time I would consider a huge pot---and/or the ground.

Thanks. We rent so I have to container garden. The 2 tumbling toms are the only plants in the hanging basket. I started out around february of this year planting in those lowes 5 gallon buckets and boy was that a disaster. The 100 temps and no rain did not help. Then I saw a video and decided to put a better bush plant in one of those 50 cent walmart fabric bags and I got around 38 tomatoes from it. I did have cracking problems because due to no rain I put the bag in a large container and kept water in it all the time. Then I started using walmart bags in the large containers with holes in the bottom and either single or double stemmed them up poles. I did 2 campari plants I got from a tomato at trader joes. I had to stop their growth when they hit the 10 foot pole mark. The tomatoes were nice but not as big as the store. Now I got some 15 gallon smart pots and will be growing a few up the 10 foot poles, a few with a staked tomato cage, and one for fun horizontally if I can along a fence. I did transplant 2 small better bushes with one into the smart pot(fabric bag and one in an equally large plastic container with many holes in the bottom and the smart pot plant is 3 times the size of the other now. I cannot wait for next spring when I will take everything I learned this year and roll with it.

I will also say I sprayed all the tomato plants with a hose to wash off as much salt as possible and then for about an hour today we got monsoon like rain. The tumbling toms from the picture look better now although I had to peel off some dead branches. Of course, this is the third time the plant has nearly died and even though I have gotten hundreds of flowers I have only gotten 1 tomato. It may be the heat since I am in central florida.

"Gardening is so frustrating in florida i swear."

No offense, but you sprayed salt on a plant without understanding what may occur. Take some responsibility for your actions/ignorance. A controlled release fertilizer with calcium + water is all you need to have success. If you don't want to worry at all, only plant the most disease/drought/etc tolerant varieties. I wish you luck next year.