Blimey, that is one long river, much longer than the UK south to North! (I like to look things up).
NLF, If my earlier post was offensive in any way I apologise, certainly wasn't meant to be, I'd looked up roughly where you were previously, curious about some of the things you grew, that i'd never heard of, so i knew you are a lot warmer than us, but 100F, gosh, that would kill me, i'm out for the count at about 25c, (77F), but you certainly have some extremes of temperatures, we get frozen for a while, but i think -20c is about the coldest I've ever known it.
Don't your tomatoes ever get blight? Or can you prevent it in some way.? Pawpaws? Never even seen one 🤣. Tomatoes etc have to be in a greenhouse here. Can get frosts up to June 1st.
I think we have a different hardiness zone to you as well, don't know why, it's very confusing at times, ours starts at H7, equivalent to your H5.
Where I live, at 1000ft, we are in UK-H7, your 5, while most of the country is H8, a few southern and western areas in UK-H9. We have the gulf stream running near our western coast, which helps keep the temperatures up.
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