Tomorrow I hope to post a couple of pictures of my eight cabbages growing on my pond raft for three weeks now. The potting mix is not fertilized for six of the plants while one is planted in pond muck and the last on one is fertilized with time-released granules. I thought the unfertilized cabbages would do well by utilizing the pond water which is full of life that would produce nitrates, etc, but those plants are terrible with the muck planted cabbage being the worst. The fertilized cabbage is huge compared to the other. I have no idea why the pond water didn't fertilize the other plants. I checked the plants for any bug damage and didn't see any. Many times one or two frogs will be setting of the raft so they may be keeping the plants bug free.