It's a waste of time/effort to try to regulate pH of
bonsai by soil amendments. If you have proper drainage, the pH
will change rapidly anyway. The way to regulate pH is through
fertilization. MiracleGro, MirAcid, most any commercial
fertilizer will do the job.

Alan Walker
http://bonsai-bci.com http://LCBSBonsai.org

-----Original Message-----
Used coffee grounds.
Jeff Isom Cleveland, OH

-----Original Message-----
Since I cannot use rain water which is slightly acidic,
does anyone have a suggestion as to how I can increase the
acidity of
the soil by amending it, perhaps with a commercial product?

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