Carolina Gardening: All my canna lilies look sick, 1 by donnacreation

donnacreation wrote:
I'm still concerned about those areas with rotted rhizomes and insects. During droughts I've always provided supplemental water, and I've never had this problem. I just took a pic of my neighbor's cannas, and they look great compared to mine, although he never waters.

Thanks, madame X, next year I'll definitely check out the Bayers systemic product. Meanwhile, wherever I see insects at the base of the cannas, I'll be applying an insecticide. I have some cannas planted next to heliconias, their uppity relatives, which are lush and healthy. Next year, I'll be using all the preventive measures in this thread, but if the problem persists, I'm getting rid of them. The thought of battling j beetles for 2 full months, and then having to wage combat with leaf rollers, mites, etc. is too labor intensive for me. Hope the new cold hardy heliconias are truly cold hardy here in zone 8a.