Soils and flower color
Rodger Whitlock (Wed, 13 May 2015 15:58:46 PDT)

On 12 May 2015, at 11:54, Travis O wrote:

Because they can get it cheap, possibly for free, maybe even be paid to take it
away — from excavations for new construction.

OTOH, there are those witches' brews labeled "top soil".

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Rodger Whitlock
Victoria, British Columbia, Canada
Z. 7-8, cool Mediterranean climate