Danged - know about the #@%@#%%^^&!@ squirrels!
I bought a Sung Hui Persimmon from Edible Landscaping a few years ago. Most persimmons, both native and oriental (Sung Hui is Korean) usually have to be dead ripe and squishy to be able to eat. Tannic and astringent if not. However, there are a few cultivars that are edible before then - although you do want to wait on ripeness to be best. The Sung Hui is a flattened type of oriental persimmon and has survived a day or two of -1 degrees, probably lower in my microclimate. In fact it is just about to bloom right now and got down to low single digits this past winter. It's gotten a little taller than I want, so will summer prune this year. This will be the 12th year. It took 3 years to bear and some years the squirrels get them all, but put little mesh bags around them last year and got more than my wife could eat, so we pulped them and froze the pulp to use in various desserts. It is self-fertile, self pollinating - so don't need another tree, but would probably set more fruit if it did. Mine is planted in more shade that it would like, but it still produces. I bought it on the understanding that it was non-astringent, but is just less astringent. Still need to be close to ripe. There are non-astringent types that are single digit hardy. Edible Landscapting apparently does not sell Sung Hui any more.