Ditto. Each practitioner can adjust the water-holding potential of the mix by adjusting the amount of bark and aggregate components in the mix. The adjustment will be based on the species being grown and the characteristics of the growing environment.

Cordially,

Michael Persiano
members.aol.com/iasnob



-----Original Message-----
From: Nina
To:
Sent: Mon, 12 Sep 2005 08:01:42 -0700
Subject: [IBC] soil layers.


Natural soil occurs in "horizons", but this layering occurs because of
a combination of weathering, microbial activity, and most especially,
the action of water on a large horizontal surface. Phenomena such as
"perching" have meaning when you are talking about a surface area of
acres; it has NO meaning in a bonsai pot with a surface area of square
inches interrupted in each direction by the SIDE OF A POT. There is no
need to worry about soil structure in a bonsai pot as long as the soil
is well-draining and the pot has good drainage holes.

Nina.

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************************************************** ******************************
++++Sponsored, in part, by Bob Pastorio++++
************************************************** ******************************
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+++++ Questions? Help? e-mail +++++