canna indicas are not doing well

Question

The lower leaves of my canna indicas are dying, turning brown and then wilting. Two months ago, all the leaves were robust and green as green can be. What is going on.

• 
• 

Answer 1

Looks like canna rhizome rot. I notice too very wet conditions in the soil around them.

https://www.gardeningknowhow.com/ornamental/bulbs/canna/what-causes-rotting-canna-rhizomes.htm