i had the same issue, roots dont like the wood chips and dont grow easily around them which slows down growth, you tend to over-water in this case, thinking she is thirsty - which compounds the problem... i tossed a few due to this and the stronger looking ones I kept, but i dont think its worth the effort... i want to enjoy growing, not struggle... so leaving them to nature in the winter season to fend for themselves and I'll start again soon