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Re: California vs Florida climate zones
Thank you. That's very good information. I think I will try to find
tolerances for each of the plants listed.
Miranda
On Jan 3, 2008 6:04 PM, Kathryn Marsh <kmarsh@iol.ie> wrote:
> Talking about tolerances is a good way of writing for these islands.
> Those Zone 9 plants will often grow only in Cornwall and West Cork.
> When I was gardening in Yorkshire I used to add almost three weeks to
> sowing dates in books, since most UK books seem to be written for the
> south-east. When we moved to Glasgow - 200 miles north - spring came
> a week earlier because of gulf stream effects. Here in Ireland I
> sometimes have more than two weeks - though only seven miles -
> between my own north facing heavy clay frost pocket and Sonairte's
> south facing walled light loam. Friends in Dublin city, only 20 miles
> south, have a mean annual temperature that is 6C higher than that in
> my garden because of the spilled heat from human activity and the
> heat sink that is the water of Dublin Bay.
>
> Kathryn Marsh
> kmarsh@iol.ie
>
>
>
> On 3 Jan 2008, at 21:53, Miranda Smith wrote:
>
> > Thank you, Catriona! I knew that plants worked differently in CA
> > because of
> > the difference in seasonal moisture and humidity, but I had no idea
> > that
> > there was that much variation in tolerance. That brings up some other
> > thoughts about Zones, too. For example, I am currently writing
> > material
> > intended for Great Britain as well as Canada and the States--the
> > Zones are a
> > perpetual problem, of course. You can grow so many things in
> > England that
> > you simply can't grow north of Zone 9 (East Coast) in the U.S. In
> > desperation, I often mention temperature and humidity tolerances.
> > From now
> > on, I will check the WFF catalog to see if they mention a plant I'm
> > discussing and will include their information, too.
> >
> > I would LOVE it if this sort of information was uniform--we barely
> > recognize
> > Canada's Zones, either, although I always include information about
> > them in
> > a note. And as for the UK? So far, the only way I can figure out
> > how to deal
> > with it is to talk about tolerated ranges. How do other people
> > handle that
> > problem?
> >
> > Miranda
> >
> > On Jan 3, 2008 3:15 PM, Catriona Tudor Erler <cterler@gardenvista.com>
> > wrote:
> >
> >> For years I wondered why the American Horticultural Society
> >> Encyclopedia
> >> of Plants would list plants as USDA zone 8 or 9 that I knew grew
> >> happily
> >> in zone 10 in San Diego. Pat Welsh, my mentor when I first began
> >> garden
> >> writing 26 years ago, explained it to me. The tropical and
> >> subtropical
> >> areas of Florida and coastal California and much of Arizona are
> >> assigned
> >> the same USDA climate zones (9 and 10) because the average maximum
> >> cold
> >> temperatures in the two regions are similar. However, many plants
> >> that
> >> flourish in the west are not suitable for Florida. In the west,
> >> winters
> >> are wet, and summers are dry. The opposite is true in Florida.
> >> There
> >> the winters are dry, and the rainfall comes in summer. Plus, as
> >> Marina
> >> mentions, in Florida you have humidity. Perhaps because most of
> >> the USDA
> >> researchers are based on the east coast, there is a predisposition to
> >> assign climate zones to plants that fall into the 9 and 10 zone
> >> based on
> >> their performance in Florida and not in the west. As a result,
> >> it's not
> >> unusual to see a plant, such as the Southern magnolia (Magnolia
> >> grandiflora), that is listed in The American Horticultural Society
> >> A-Z
> >> Encyclopedia of Garden Plants as hardy in zones 7 - 9, that will grow
> >> just fine in zone 10 along the coast in southern California.
> >> The problem caused by this misinformation is solved in the
> >> excellent
> >> catalogue produced by White Flower Farms nursery. In it they
> >> break down
> >> their climate zones listing with recommended zones for the south
> >> and for
> >> the west. For example, Hosta 'Guacamole' is listed hardy for
> >> zones 3 -
> >> 8 in the south, 9 in the west.
> >> Catriona Tudor Erler
> >>
> >> Miranda Smith wrote:
> >>
> >>> Nice to have you here!
> >>>
> >>> Miranda
> >>>
> >>> On Jan 3, 2008 11:52 AM, <blombem@gvillesun.com> wrote:
> >>>
> >>>
> >>>
> >>>> Hi all: I've been reading posts for two years now, and hope to get
> >>>> involved
> >>>> in the discussions. I have been writing a garden column for The
> >>>> Gainesville
> >>>> (Fla.) Sun for nearly 35 years (it's a side job from my "real
> >>>> job" as a
> >>>> reporter and editor) and have noticed there aren't many 8b'ers
> >>>> on this
> >>>> list
> >>>> (except for those of you in California -- that's an entirely
> >>>> different
> >>>> zone
> >>>> 8b than ours; we have humidity).
> >>>>
> >>>> If this goes through, then I have broken the barrier.
> >>>>
> >>>> Marina Blomberg
> >>>>
> >>>> _______________________________________________
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> >>>>
> >>>>
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