If yours are mounted, do the roots get enough moisture? I potted all mine so the lava rock could hold humidity around the roots longer. With the aeranthes, I let a little water sit in the bottom of the saucers where the roots don't reach. The water evaporates through the rock to provide extra humidity. They were so little and delicate last spring (just out of flask and rootless) that I still baby them. The one thing about angracums, aeranthes, and aerangis is that they need good airflow around roots and leaves. If you do pot them, use plastic net pots. You can spray lava rock to provide extra humidity. Good luck. These can be grown, you just need to tweak a bit to make them happy. The only bad thing about potting the leonis and didieri is when they bloom, I don't think it will look as nice. Good luck!
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