OK, here we go. I started blogging by bitching about zones over a year ago. My friend Kathy Purdy has put together a great article on the different zone maps that are out there, how they came to be, and why you may or may not pay attention.
She discusses three different maps:the oft referred to USDA Zone map, the one from the Arnold Arboretum and the one from Sunset magazine.Click here to read the article. I was totally surprised when she said the most accurate was the Sunset map. Unfortunately, the Sunset map creates a lot of confusion here in our area, particularly for newcomers, but not this Newcomer. One of the local newspaper writers bandied us around as a Zone 2, using the Sunset magazine designation, without identifying it as such…..you should have heard the uproar at the local nurseries. The garden centers/nurseries and the Extension office use the USDA zone classification system. That makes us a Zone 6. Recently I read that the updated USDA chart has us moved to zone 7.
Here’s my take on the whole deal and you can take it or leave it. I don’t plant expensive plants that can’t take a Zone 5 winter. So, you won’t see me shelling out hundreds of dollars for something that can’t go to ZERO or 10 below. Like, an expensive shade tree or conifer. I was here the winter of 1990 and 1991 when it was 20 below for two weeks and it was miserable. The nursery industry took a beating. So did home gardeners. Meanwhile, we have folks prancing around about their hardy camellias…….I want to hear how they wintered over this year……call me. You know who you are.
1 response so far ↓
1 Pam // Feb 5, 2007 at 7:47 pm
I live in coastal South Carolina - more or less zone 8 but I plan for plants that can tolerate a zone 9 - we have the opposite problem down here: brutal summers. I’ve heard rumors that the USDA map is raising the zone numbers for some places along the eastern coastline - not surprising I guess. I can’t imagine camellias hardy enough for Idaho winters (even the winter hardy ones) - and I can’t imagine Idaho being a zone 7! Anyway - saw your comment over at Garden Rant and thought I’d say hello.
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