North American Fruit Explorers mailing list at ibiblio

[dwoodard@becon.org]

For the Agriculture Canada plant hardiness zones, "a" is the colder part 
and "b" the warmer part.

Doug Woodard
St. Catharines, Ontario, Canada



On Fri, 2 Feb 2007, Jim Fruth wrote:

>    BTW, regarding dividing zones into 'a' and 'b' climate zones, I was
> under the impression that 'a' is adjacent to the next warmer , numbered,
> zone and 'b' is adjacent to the next colder, numbered, zone.  You have it
> the other way around:  "Mine are in zone 4a/3b (tending toward
> the former)."  Now I'm confused; which is it?