My canna blooms yellow/orange flowers. When done blooming all new leaves turn brown from top down to stalk. What am I doing wrong?
Certified GKH Gardening Expert
Can you include photos? This would help me. If it is getting cold in your area, then this is the natural response of the plant. If not, I would look into a fungal issue.
This article will help with the care of these: https://www.gardeningknowhow.com/ornamental/bulbs/canna/canna-lily-care.htm