Quote:
Originally Posted by GraniteStater
I had a surprise last week, saw two large sized Balsam Fir trees growing in zone 6A southern Indiana.
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That's really surprising, but I still seriously doubt they'd do well here. The closely related Fraser Fir only grows at the highest elevations even in the rainforest, and places like Nashville, Knoxville, Murfreesboro and Chattanooga have average highs VERY close to 90F in July. Plus we have more prolonged heat here in the southeast, even if you ignore the overall hotter peaks.
Quote:
Originally Posted by southernnaturelover
I'm on the line between 8a and 8b (hardiness zone) at the tip of the panhandle.
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I figured, but what I'm saying is that heat zones usually matter more than hardiness zones in terms of upper limits. The main exception being deciduous trees that'll grow southward to the tropics or hardiness zone 10, which require a cold period to shut them down.
But anyways, I don't think Spruce Pine would do well in any of Tennessee except Memphis. As I said before, I learned only AFTER posting this thread that they're only hardy to USDA Zone 8. Most of TN is 7, and I was surprised and horrified to learn that the Spruce Pine isn't as hardy as the hardiest of palms, evergreen magnolias (both species) and even the hardiest of live oaks.
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