Adding Epsom salt to the soil may create more rot since magnesium and calcium ions compete for uptake into the plant. Epsom salt doesn’t stop blossom end rot—it leads to more of it. https://www.veggiegardener.com/epsom-salt-5-reasons-to-try-it-in-your-garden https://todayshomeowner.com/how-to-fertilize-plants-with-epsom-salts https://www.epsomsaltcouncil.org/gardening/epsom-salt-for-gardening Blossom end rot is caused by a deficiency of calcium. It’s time to debunk that myth. https://cannabislegale.org/how-to-use-the-epsom-salts-in-your-cannabis-garden https://wakeup-world.com/2012/05/05/gardening-with-epsom-salt Epsom salt contains magnesium sulfate—no calcium at all. https://www.agrifarming.in/application-uses-benefits-of-epsom-salt-on-plants