Could it be potbound? Repot into fresh compost, with a root haircut? No idea if this is good for date palms but it has worked wonders for other large houseplants.
That is a possibility. I'm going to give it a month to see if it gets going with the onset of spring / summer. If still not looking perky, I'll go for the nuclear re-pot option.
Could it be potbound? Repot into fresh compost, with a root haircut? No idea if this is good for date palms but it has worked wonders for other large houseplants.