Hi Gang, I suppose that familiarity can breed contempt; for a long time I didn't bother growing cannas because they were such "ordinary" plants from my childhood. However, I've come to learn they are really nice in certain places and used in certain ways. I've had good luck with the one called 'Praetoria' (or 'Bengal Tiger' and maybe some other names) by growing in a large pot (about 16 inches across) that is lined with 3 layers of 4 mil insulation plastic. I filled the pot with soil and put the plant in and it thinks it is in a wonderful bog. But then there are the leafrollers; I know of 2 types, lesser and larger. Perhaps there is an in between size too. After trying Bacillus thuringiensis, and encouraging birds to feed on the things, I tried imidacloprid. It works wonders and seems to last for about 3 months. Maybe the product would last longer in a climate with less rain or heat. I put about 1 cup (per large clump) of the Bayer Advanced lawn granules on the soil around plants in spring, summer, and fall. There are no more problems. Do others out there use imidacloprid? I sometimes hesitate to use anything on some plants if I think they will grow out of a problem, or if I don't mind the problem. But, those leafrollers can quickly turn a canna clump into a sodden, disgusting mess of rot, worm debris, and (or course) worms. By the way, I always check any pesticide at EXTOXNET for toxicity profiles, including danger to groundwater, etc. I encourage all to do the same. EXTOXNET is a great source of information; after you read up you can make informed decisions. LINK: Larger Canna Leafroller http://edis.at.ufl.edu/pdffiles/IN/IN28900.pdf LINK: Lesser Canna Leafroller http://ipm.ncsu.edu/AG136/cater12.html LINK: EXTOXNET http://extoxnet.orst.edu/ Cordially, Joe Hot today in Conroe, some Amarcrinum still blooming and wonderfully fragrant. I don't know their background; they are unnamed plants I've picked up here and there. I love 'em even though they are not as grand as Crinum.