Fw: [GWL] USDA Climate Map & Canada Gardens to Visit
- To: <g*@hort.net>
- Subject: [CHAT] Fw: [GWL] USDA Climate Map & Canada Gardens to Visit
- From: &* T* <m*@hort.net>
- Date: Tue, 31 Aug 2004 02:48:39 -0400
This is the 2nd post...
Marge
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> From: Jo Ellen Meyers Sharp <hoosiergardener@earthlink.net>
> To: Garden Writers -- GWL -- The Garden Writers Forum
> Date: Monday, August 30, 2004 10:32 PM
>
This just in from the Weekly Nursery & Management newsletter e-mail
New Zone Map will be more accurate The revised version of the USDA
Hardiness Zone map will have many improvements, use more data and be
more accurate, said <t*@plantdel.com>Tony Avent, owner of
Plant Delights Nursery in Raleigh, N.C., and a member of the map's
advisory board. The new map will be issued in two phases. Phase 1
will show average annual low temperatures by zone in 5-degree
increments (a and b designations) and use weather data from the last
30 years. The current map, issued in 1990, uses 12 years of data. The
new map will better reflect coastal and lake effects and urban heat
islands, Avent said. Phase 2 will incorporate overlay maps to reflect
factors such as duration of cold, summer heat factors and possibly
airflow patterns.
jems
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