Climate (once again), was Re: Agapanthus

Rodger Whitlock
Tue, 15 Nov 2005 18:41:17 PST
On 15 Nov 05 at 8:40, Boyce Tankersley wrote:

> I grew some of the Agapanthus africanus from Monrovia when I
> worked in Fort Worth Texas. They lived but never bloomed or
> thrived like I had seen them do in other parts of the country.
> I experienced the same frustrations when I was working on
> Galveston Island, Texas. I spent a lot of time with the Sunset
> Western Garden book to identify zones comparable to mine (with
> salt spray, etc.) and then selected new/different plants.
> Invariably they failed - I think due to relatively high night
> time temperatures/soil pathogens.

These remarks about the sensitivity of many plants to nuances 
of climate are always of interest, and point up that hardiness 
zones are only one factor, in many cases perhaps not the most 
important one.

In this case, one critical difference between Galveston and
any comparable location on the Pacific Slope is humidity. The
Pacific Slope simply isn't a very humid place, even in winter 
and esp. in the milder climates. Look at San Diego, for
example: it's next door to a full-blown desert.

I'll even assert that even with all the fog, northern
California locations aren't really *humid*.

Rodger Whitlock
Victoria, British Columbia, Canada
Maritime Zone 8, a cool Mediterranean climate

on beautiful Vancouver Island

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