« Reply #10 on: August 23, 2011, 08:06:34 PM »
Stab in the dark - Strybing Arboretum, San Francisco?
(geez - just realized its been 30 years since I visited)
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Mike
Geologist by Uni training, IT consultant, Referee for Viola for Botanical Society of the British Isles, commissioned author and photographer on Viola for RHS (Enc. of Perennials, The Garden, The Plantsman).
I garden near Polis, Cyprus, 100m alt., on marl, but have gardened mainly in S.England