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[tanis cuff <tanistanis@hotmail.com>]

Think too about water source.  Much of the well water used for irrigating 
pots is higher pH than rain water.
 
tc, sWI, lower 20s forecast, I'm ahead of the season only because I did less 
this year!




Date: Fri, 7 Nov 2008 11:51:36 -0500
From: alandhaigh
To: nafex
Subject: [NAFEX] pH preference in pots


When using typical potting mixtures, I was taught in hort-school that you 
calibrate down one point so a plant that likes a pH of 6.5 in typical soil 
would do best with a 5.5 pH in the artificial medium we call potting soil.  
This is because the much higher level of organic matter in potting soil 
changes the chemistry of nutrient availability.  A deeper explanation than 
that is beyond my present grasp.
 
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