I think it's fine for a CRF cat.  You could ask you vet if you want to be 100%
sure.  I don't see anything that could possibly harm her though.  Wheat grass
helps with digestion and has vitamins, especially the B vitamins.  I grow my
own for my cats and they love it.
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See my cats:  http://community.webshots.com/album/56955940rWhxAe
Raw Diet Info: http://www.holisticat.com/drjletter.html
http://www.geocities.com/rawfeeders/ForCatsOnly.html
Declawing Info: http://www.wholecatjournal.com/articles/claws.htm