I live in FL and have recently inherited a bunch or orchids. I have at least three vandas that I keep in my lanai and water every day. They get about eight hours of sun. They all spiked with brown dead stems and buds.Leaves look good.They have nice white roots,green tips(in baskets, no medium) I have a few that are spiking now that look normal(stem and buds are green so far). I did fertilize in March.(Water mixed with a light dosing of fertilizer for two weeks) They did have a few cold nights in February of 40 degrees for several hours.
I'm sorry I don't have their names they were given to me unmarked.
Any ideas?
