I have hardy kiwi here i have got kiwis off it once or twice. The large 'Jenny' kiwi sadly died with the Chilean guava. Here they are extremely sensitive to frost in flowering and leaf emergence so i might be taking them out eventually. Akebia does well here but it has a weird bitter after taste for me. There are other plants in Japan and Patagonia you can look into growing I am sure. Luma and Chilean hazel are probably worth trying they arent particularly fast growing so they got a little lost here and crowded out by other things in the end.