How large are the palms?

Are they potted or in-ground?

they are all around 2 feet, and in ground.

Look for something time released. I think optimal for palms is a 3-2-3 ratio but you probably can't find that.

Try 1/2 a cup per plant now and late July. Water after fetilizing.

Does NM have a hardpan (caliche) problem?

I am a recent transplant from Massachusetts to Surprise Arizona. I have 6 palm trees in my yard. 1 Blue Mexican Fan Palm, 3 Mediterranean Fan Palm and 2 Jumbo Pygmy Date Palms. I can't find a comprehensive book on how to take care of these trees and what disease symptoms look like etc. Can anyone recommend one?

Also, one of the Pygmy Date Palms is in full sun and always has some yellowed leaves. But now it has some white tinged leaves at the top. I believe the yellow leaves are due to the full sun exposure but anyone know about the white tinged leaves?
Thanks for any help...

several to choose from......

Here is a link that might be useful: http://www.raingardens.com/shopfor/books.htm

Start with "Betrock's Guide to Landscape Palms".

Want to create edge around established queen palm.
Due to space restrictions I would have to cut some roots to install edge, would this hurt the palm?

Thanks