Hmm - I'm not sure what's causing the skinny rhizomes for you. If they're that skinny, they have a lot of growing to do. Mine are fat gnarly things. I don't purposely thin them but if I dig up a rhizome that's too big for what I need, I break off a piece and replant the remainder. I don't harvest the whole big pot but only dig up what I need. Last year my foliage was about 2 to 2 1/2 feet tall. This year a little shorter due to cool spring. I do keep the soil damp but not wet. It might have liked our humidity a while back when it really put on a growth spurt. Most of the foliage will die back by early spring, being indoors but I'm trying a new location for it this year so maybe the foliage will hang on longer. I don't repot them but will add some compost in the spring along with some liquid seaweed.
