Recycling Potting Soil
I have several large containers on my patio (20" diameter+). I spent a significant amount on potting soil to fill them this year.
I really hope I don't need to buy all new potting soil next year for these containers.
Any ideas on what I can do? I also have 3 half whiskey barrels and refilling them is just not an option each year. Hundreds of dollars worth of potting soil.