Mr. Mike,
Many thanks for this great article...I have followed your posts on the IBC forum about your rock plantings, and appreciate them much...This article is well constructed to show some of the many possibilities for using stone as a planting container for our trees...
Although I don't currently have any of my trees in rock containers, I certainly do have plans to do so...I have experimented with native limestone and an angle grinder in the past and made some decent pots for lime tolerant plants such as boxwoods...
I haven't found a source for the 'feather rock', but I am definately looking...Perhaps I will find some other type rock that would be suitable in the future, or maybe others will contribute to this thread with ideas on different types of rock they have had success with...
Regards
Behr

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he could have sworn he heard some
one saying rather loudly...
"I thought he would never leave"
San Antonio Bonsai Society, Inc.