1936 usda zones, US
Michael Mace (Mon, 08 May 2017 10:45:54 PDT)

Norman wrote:

these climatic conditions into account.

FYI for new list members, there is a zone system for summer-dry climates on
the wiki:

http://pacificbulbsociety.org/pbswiki/index.php/…

Even that is just an approximation, of course, since it doesn't take into
account things like soil type and moisture from fog. But it's a starting
point to understanding the native climate of a particular summer-dormant
bulb.

Mike
San Jose, CA
USDA Zone 9, summer-dry zone C3

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