Hardy Palm and Subtropical Board
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Re: Subtropical vs Temperate limits
> All maps I see put me in Humid Subtropical and put the dividing line near the Ohio River. <
That's wild. And wildly inaccurate, to my way of thinking. What's the warmest region the Ohio River passes through? 6b? Hardly Subtropical.
Jim, Wilmington, DE, 7a
Last 30 Years Avg. Winter Low: 7.50F
Last 20 Years Avg. Winter Low: 8.35F
Last 10 Years Avg. Winter Low: 8.40F
Favorite Palms: Species: Phoenix Canariensis / Genus: Sabal