I have a challenge in that my Taro plants grow too well ! I live in a northern climate, and take them in each winter and store in the basement. When I put them back in the koi pond after the danger of frost is past, they grow like crazy, ultimately getting to 4-5 feet tall with huge leaves. In spite of going to larger pots, and even putting rocks in the pots to weigh them down, they inevitably get so top heavy, they blow over in high winds.
I'm getting too old to deal with this every year. Are there varieties that stay relatively small and do well in the pond ? They look so nice, I hate to get rid of them completely, but don't want to deal with lifting the big pots with huge plants, and trying to fix the blow overs.