My Dwarf Sunflower Just Randomly Died Today Help

Question

the sunflower in the middle just yesterday was fine but then yeeted itself into oblivion while I was out today/ past two days have been cloudy and today was sunnier (they r not exposed to harsh wind/ sudden temperature drops) also her leaves dont feel dry like when it lacks water what’s wrong?

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Answer 1

This appears to be Verticillium wilt, or any of the other closely related fungi that cause sudden plant death.

It will spread through the whole container, eventually, and needs to be corrected with solarization of your soil. You can let the sun do this by covering with clear plastic, or you can do it yourself by baking the soil at, exactly, 160 degrees Fahrenheit for 2 or 3 hours.

Here is an article for more information:

https://www.gardeningknowhow.com/plant-problems/disease/verticillium-wilt-treatment.htm