RE: [gardeners] New hardiness zones -- get the fan

Margaret Lauterbach (
Thu, 29 May 2003 08:38:19 -0600

AHS says it's based on temps between July, 1986 and March 2002.  That 
should have picked up our -25 in 1990.  Margaret L

>Egad!  They've moved me to zone 6!  They used to have me in zone 5 and I've
>always had to move down to zone 4 when buying plants to get them to survive.
>Granted, we haven't had a zone 4 winter for several years and this past
>winter our low was the lowest it has been since this drought started, only
>down to -11.  I wonder if they have based this map only on the past 4 or 5
>year's weather?