Propagation: Anyone with experience with Parks BioSponge set-up?, 1 by MaryArneson

MaryArneson wrote:
I tried the Bio Domes and Bio Sponges in the 2014 growing season. Most seeds germinated very well, but many plants seemed unable to penetrante the sponges with their roots. Some just remained spindly. Many died. I managed to save some by cutting away the sponges. There were other plants that appeared to do well, with roots growing out through the sponges. When I dug them up in the fall, though, the root systems were poor and the sponges hadn't decayed at all. The small sponges were a little better than the jumbo ones. I will not buy them again. I notice that Park publishes only glowing reviews on their website, and that makes me reluctant to order from them in the future.