On Nov 26, 2011, at 7:12 AM, John Grimshaw wrote:
> I am curious to know how widely cultivated this plant is in the USA. It's
> very rare in British collections (and not at all common in the wild, so it
> is a plant we should make every effort to maintain in cultivation). Also,
> does it go dormant/stop growing in the Californian summer?
I was waiting to see if Harold Koopowitz would answer this question; however,
I'll give a particular answer. I bought three of these at a University of California at
Irvine arboretum plant sale years ago when Harold was the arboretum director.
One has survived. It is located about 10 feet east of the trunk of a camphor
tree and within the drip line. It has formed a small clump with three or four
flowering scapes each summer. In my climate, it is green year round. This is
a Mediterranean climate where it rains in the winter. I water it in the summer.
This is U.S.D.A. hardiness zone 9, specifically 37°40´18.95˝N 121°47´14.60˝W
at elevation 458 feet. This is in northern California. Since UCI is in southern
California, I would imagine most of the Agapanthus africanus ssp. walshii
from their plant sales are in southern California, in or near Orange County.
Kirby Fong
Livermore, California
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