my tomato plants have started drooping and wilting and I don’t understand why. Just a few days ago these were the healthiest plants. I kept it to watering sporadically but liberally when the soil felt dry ( I just stick a finger into the soil) it did fine until a few days ago when it started wilting so I stop watering as much but to no avail. Argh! Is there anything that can be done to salvage them? All my other plants are doing just fine. Also, here in Germany the weather has been pretty sunny and warm consistently since I got the plants.