I’m a fairly new orchid grower, and got some Vanda orchids that were dying from my father at the beginning of summer. Both clones since then have been doing really well, putting out new shoots and roots, even budding. However I’ve noticed some of the leaves are paling and going an olive green (I’m guessing they’re heading towards yellow) and I’m a bit worried. I’m in Autumn now and the nights are getting cooler - could the cold be the problem? I usually keep them outside.
Ps, the leaves are wrinkled as when I got them they were severely dehydrated