Specialty Gardening: Second Generation Potting Soil, 1 by gessieviolet

gessieviolet wrote:
I know many users recommend dumping each year but I agree this is an investment. These tomatoes are growing in a potting mix that I have use 3 years now. I do put a little new potting in to fluff up the volume of the mix each time I plant, I don't mix fertilizer into the mix I use a strip of 10-10-10. I wonder if your problem with tomatoes may be too rich a mix in your boxes, even though guano and worm casting are organic aren't they very high in nitrogen?