You didn't kill them. They just need more water. The water bottle tip from Fidel is excellent. I have used this technique many times for my tomatoes during summer droughts. I would give that post 2 kudos if I could.
I have been feeding my tomatoes/potatoes: Organicare Pure Grow (6/6/5 + 8% Ca) for veg
Organicare Pure Bloom (1/5/4 + 6% Ca) for flower/setting fruit
Both are OMRI listed and are giving me great results. A little food now and then will go a long way to keeping your plants healthy. Especially if they have been in the same pot/dirt for a long period of time.
I have been feeding my tomatoes/potatoes: Organicare Pure Grow (6/6/5 + 8% Ca) for veg
Organicare Pure Bloom (1/5/4 + 6% Ca) for flower/setting fruit
Both are OMRI listed and are giving me great results. A little food now and then will go a long way to keeping your plants healthy. Especially if they have been in the same pot/dirt for a long period of time.