Graph Of The Day - Hardiness Zone Changes - 1990 - 2006. Wow.

[hatrack]

http://www.arborday.org/media/map_change.cfm

[madokie]

1. I know that here in northeast ok

we have trees that have been surviving my whole life that are not supposedly in the right hardiness zone so I wonder if some of this change is due to better data to base the zones on now due to what we've learned these last 60 70 years. Global warming too mind you but

[OKIsItJustMe]

2. The Arbor Day folk are pretty straightforward about the reason

Much of the U. S. has been warmer in recent years, and that affects which trees are right for planting. The Arbor Day Foundation has recently completed an extensive updating of U.S. Hardiness Zones based upon data from 5,000 National Climatic Data Center cooperative stations across the continental United States.

[madokie]

7. we've got 8 or 10 arbor day trees in our yard

some of 'em going back 20 years

[kestrel91316]

3. Here in the west San Fernando Valley we are now basically in the Saudi Arabia zone

most of the year. I don't bother to garden anymore.

[XemaSab]

4. Interesting....

We're in one of the few areas that got colder. :shrug:

[meow mix]

5. goodbye #3 zone...

tiny bit left.

[Odin2005]

6. I have noticed a Ginko tree planted here in Fargo.

They used to be only marginally hardy here before. We used to be borderline 3b/4a, Now we are 4b. My mom is an avid gardener and she has remarked on how the growing season has become noticeably longer since the 70s and there is lest damage to perennials and trees in the winter from cold weather.

I see Zone 5a has crept into southern Minnesota.

[blueworld]

8. And the insects & blights are migrating northwards as well n/t

[farmbo]

9. But..but..but...Those British professors faked the whole thing..Sarah said so...

:evilgrin:

[niyad]

10. and I recently read an article that stated that olive trees are now being grown in devon, england.