Asking for a hint of world map of chilling hours Please?
Roy Herold (Thu, 03 Jan 2008 15:23:43 PST)

Although some models don't count the hours below freezing...

<http://davewilson.com/homegrown/gardencompass/…>

I can see where bulbs might need to go by soil temperature, as opposed to air temperature.

I found chill-unit maps of Iowa, Florida, South Africa, and New Zealand, but nothing worldwide. Keep on Googling.

--Roy
NW of Boston
High of 9F here today. That could be lots of chill units, or none at all.

----- Original Message ----
From: Mark Mazer <markmazerandfm13@earthlink.net>
To: Pacific Bulb Society <pbs@lists.ibiblio.org>
Sent: Thursday, January 3, 2008 4:57:17 PM
Subject: Re: [pbs] Asking for a hint of world map of chilling hours Please?

A chill hour is 1 hour at 45F or below.

map

impossible to