Please help, my mint plant is not doing well 😢 So, her leaves have begun turning slightly red, and they started dropping slightly and becoming less supple. I read it may be due to an excess of minerals from hard water and that flushing your plant every 4th water is beneficial. Since then her soil is very wet and I watered her 3 days ago, the regular salt buildup is still occurring outside the terra-cotta pot (except now I suspect it may be mould) Some leaves are also developing small black spots. It is becoming colder outside so that may be the issue? Please help me save her she’s very important to me 😢