I've had a fairy castle cactus for 3 years now. I put it outside when the weather was nice and my son dropped his bike handle on part of it. It is now turning white. Is there anyway to save it?
Fairy Castle Cactus
Certified GKH Gardening Expert
Is it only turning white where the bike hit it, or all over? It may be suffering from sunscald. This happens when you bring indoor plants outside without acclimating them. If this is the case, is should recover, but in the future, here are some directions on how to acclimate it: https://www.gardeningknowhow.com/houseplants/hpgen/move-houseplant-outside.htm