I have a pretty big Kalanchoe and it looks 99% green, but the bottom leaves are starting to brown and die. Not many of them, just like one at a time I think. Is that normal? If I look online, it says I'm doing something wrong. Am I? It just keeps growing (though the flowers are fewer and fewer, which might be because their season is ending) and I'm watering it around once a week (if I do it twice a week it stops growing, so I've settled for that). It's also really hot and sunny outside so it's been getting lots of light and if anything, the bottom leaves are the ones not getting much light
Lower leaves and whole plant pictures