Question: are there any edible pomegranate varieties that will survive a zone 7?  Tair  Arnold, MD

Answer: Tair,

All the popular pomegranates (Angel Red®, Wonderful, Grenada, Sweet, White and even Utah Sweet) are cold hardy to U.S.D.A. Zone 9 and maybe Utah Sweet into Zone 8B.  Even in Zone 9, I have seen whole commercial crops lost with an untimely spring frost and some plants killed by it.  I suspect the tops are hardier but once the new spring growth comes out and gets killed back by the frost, the plants seem to have a hard time recovering.

Utah Sweet Pomegranate

I'll bet the answer to your question is "Yes".  There a lot more pomegranates in the world than the popular ones you see in the supermarkets (over 1000 varieties according to some sources).  Some I have read are cold hardy - but I have no experience with these other pomegranates or how they taste and thus cannot provide a recommendation.  There are some people in your region who grow pomegranates in large containers and move the containers into a safe place during the colder months.   Ron L.