I have reused container soil ( it is soilless mix to begin with) with no real problems. I do dump it into a pile and add fertilizer to it then replace the soil into the containers. I also add new soilless mix to the pile if needs be. If your plants have experienced soil borne disease, that is when I would discard the old soil and start over.
__________________
there's two things money can't buy; true love and home grown tomatoes.
|