I have a cactus standing on my windowsill and for years it seemed pretty healthy, but last month its leaves started to turn a light brown-pinkish, kind of like a salt stone lamp. They also look a bit dry, but don't feel very different. Some of the other leaves are starting to look purple as well.
- It hasn't been moved for about five years.
- I don't really water it regularly, just when I remember it or when it looks dry.
- I live near Munich, and yes, we did have a bit weird weather pattern lately. (Four weeks ago it was still snowing, and now it's about 30°C, 86°F.)
What's wrong and is there something I can do?