Blossom End Rot? Zone 8b. First year growing San Marzanos- guessing inconsistent watering is the issue? Regularly fed, bed is mulched although admittedly soil could have been worked on a bit more before planting and was heavy clay to start with. We’re still working out some kinks with a new watering system so hoping that’s the only issue, but going to add some calcium tonight for good measure. Unfortunately lost a bunch but so far this is the only plant of 4 affected. New to this so any advice is appreciated. Thanks in advance! Originally by u/crumpled_toast on Reddit: https://tinyurl.com/yubg52jt