Tomatoe plants

Question

what causes a tomatoe plant that appears to be healthy and thriving to suddenly start to wilt?

Answer 1

Wilting tomato plants could be from lack of water, too much water, poorly draining soil or disease.
These articles will help you.

https://www.gardeningknowhow.com/edible/vegetables/tomato/wilting-tomato-plants.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/watering-tomato-plants.htm