Uncommon cold hardy fruit?
Hi all. I posted this in the Pa Gardening part of the forum, and thought I'd try here to see if I could get any other opinions.
I'm mostly interested in weird tropical fruit, but I've recently become aware of the fact that there's a lot more than apples I can grow here in zone 5, but I'd like to see if anyone has had a good experience with any of the ones that I'm looking to plant. My nice long list is: Pawpaw, Quince, Goumi, Gooseberry/Currant, Elderberry, Ginkgo, Saskatoon berry, Artic Kiwi, Blue Bean Bush (Decaisnea fargesii), Bannana Yucca (Yucca baccata), Nanny berry (Viburnum lentago), Americian/Lotus Persimmon (Diospyros virginiana/lotus), Seaberry, Spice Bush (Lindera benzoin), Chequer tree (Sorbus torminalis), and Kousa Dogwood (Cornus Kousa chinensis). I'd also like to grow some sort of rose with edible hips and a frost hardy opuntiod cactus. The only one of those I've ever actually seen around here is the Ginkgo, and I know that the Gooseberry/Currant and Elderberry should be fine, but, although the rest should be hardy in zone 5, I was wondering if anyone had any experience with any of the above mentioned species. I'd like to make sure that they've got a chance before spending any money. Also, in the case of some of the more cultivated ones, like the Pawpaw, Quince, and rose, could anyone recommend any superior fruiting varieties of anything?
I'm also wondering if Jujubes are hardy to zone 5. I recently read on Tyty Nursery's site that they are (they also said a pomegranate called Plantation Sweet was z5 hardy), but considering the source, I'd rather ask knowledgeable people first.