In Dave's Garden plant descriptions, sometimes three different pH's are listed as well as multiple zones. Is there any connection between the two? For instance, when multiple pH and zones are mentioned, is a lower pH better in a lower numbered zone and a highter pH better in the higher numbered zone? Or, does it just mean that the plant will do equally good in any of the pH's listed in any of the zones listed? I just want to get the optimal pH for each plant in my zone (9b).
Answered: http://davesgarden.com/guides/articles/view/3480/
ANSWERED: pH and Zones in PlantFiles
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