Cannas in a tub
You are probably beginning to think about overwintering, but I have a different problem I have been offered an old plastic tub which was used as a water container. It has a crack in the bottom, which I guess was the reason it was discarded. It's not very large, oval shape about 2.5 x 1.5 meters, about 50cm deep. I thought of using it for growing cannas as they like a lot of water and rich soil, which we do not have. We also get regular drought here in Brazil!. They could stay in all year round as we do not get any frost. I've tried them in pots but they quickly outgrow them. Do you think it would work?