[ladyjane]

When hubby’s tomatoes in buckets had the rot, I had him use a mixture of bone meal, Empsom Salts, and crushed egg shells(use directions on the packages).

There is a youtube video showing how to prepare the egg shells so the calcium is accessible. I've used it. It seems to work The plants love it. Epsom salts too.

https://www.youtube.com/watch?v=lwCWFpwJfqM

[greeneyes]

Thanks for the link. I’ll be exploring that for sure.