Have to change soil?
My dtr who lives in CA grew tomatoes in containers. She was so thrilled that she really had a good season. She is home visiting and was disappointed to tell me that they were getting brown at the bottom and she was afraid they were dying. I encouraged her to try planting another crop but did not know whether she should completely change the soil or whether the soil would be contaminated. She has them in containers on a small balcony of her apartment. Can we get some advice on this before she has to go back? Thanks in advance. Barb