A friendly GWer included cassia seeds as an 'extra' last winter. I got them started with some plants now as high as 5 feet but no blooms this year. I like the leaf effect but really would like to get it to flower. I know it won't survive outside but am wondering about letting it go dormant in my root cellar. That's what I do with my brugmansias with pretty good results. I'd really appreciate input from anyone who has tried to winter this in a northerly climate (and you don't get too much northerly than MN - LOL). Thanks in advance