brief commercial announcement

Russell Stafford, Odyssey Bulbs
Sun, 14 Feb 2010 20:12:22 PST
Hi, John.  It's a low-temperature limit, in many cases a conservative 
guess, and mostly in response to customers who virtually demand some 
quantification of cold-hardiness.  Lots of plants that thrive in zone 
9 in California fail in zone 9 in the southeastern U.S., just as many 
that flourish in zone 5 in Colorado perish in zone 5 in 
Massachusetts.  Combine the hardiness rating with information on a 
bulb's native climate, and it's somewhat more useful.  A species from 
a Mediterranean climate will likely do well in coastal California; if 
it has a zone 5 hardiness rating, it should also do well in a region 
(such as the Great Basin) with cold winters and relatively dry 
summers.  It might be iffier in the far damper Midwest and Northeast, 
however.  The same goes for heat-tolerance ratings.  The 
cold-hardiness and heat-tolerance ratings for most plants will differ 
markedly in different areas of the country, so an estimated hardiness 
range is essentially worthless for many or most locations.  Seasonal 
patterns of temperature and rainfall in the plant's native region -- 
this is by far the most useful information.


At 10:07 PM 2/14/2010, you wrote:
>A question about your catalog:  Is the USDA zone you give with each
>species or cultivar the minimum temperature?  Or is is a high
>temperature limit?   For instance, would a Mediterranean species
>listed for zone 6 also be suitable for Zone 9?  Most of your bulbs
>are unusual enough that they do not occur in the Sunset garden
>books.  Wouldn't it be more helpful if you indicated a range of zones
>where each bulb could be cultivated--not just the northernmost?
>John C. MacGregor
>South Pasadena, CA
>USDA Zone 9
>Sunset Zones 21/23

Russell Stafford
Odyssey Bulbs
PO Box 382
South Lancaster, MA  01561

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