How to prevent blossom end rot next year?
Overall I had a good year, but after a few months started to get BER sometimes. I container grow in pots about 18" across and 18" deep which are big enough to produce a number of fair sized Rutgers tomatoes. I counted 60 at one time on one of the plants. Use Miracle Grow Moisture Control Potting Mix, and water twice each week with water from the lake they grow next to. That method did well, but I'm guessing toward later months the calcium that was in the soil became depleted to the point of getting some BER. Can anyone suggest good ways of providing calcium for later months so it doesn't happen like that again next year?
Thanks for any help!