Hi,
I have a number of supermarket orchids which have been bought for me as gifts. Typically they do well; I repot in fresh soil and water once a fortnight or so with feed in summer.
However, I have one old stalwart which has started to grow malformed leaves. They are twisted and buckled and sometimes only half a leaf appears. I usually have a new flower spike by now but no luck yet.
Any ideas what I've done to it?