Modern Masters Bonsai Soil 3/4/14

This Hawthorn in bloom is from Walter Pall’s Bonsai Adventures, as is the article below. The rest of the photos in this post are from Walter’s online gallery.

It’s about the soil. This post originally appeared here on Bark June last year. We’re revisiting it because it’s about soil and because we’re about soil, at least for the moment (see our new Masters Bonsai Soil at Stone Lantern).

Walter Pall, world famous bonsai artist and much more… We’ve feature Walter’s bonsai numerous times here on Bark (and in Bonsai Today) and will continue to feature them for as long as we continue posting. I won’t say much more, except that Walter produces quality trees by the hundreds (seemingly at least) and he also sometimes produces worthwhile and even provocative ideas about bonsai. What follows may be his most fascinating and provocative idea yet (not to say it isn’t still fascinating and provocative, but now I’m leaning more towards ‘educational and practical’ ).

The first few paragraphs of Walter’s article begin just below the photo… (note, Walter uses substrate where most of use soil). I look forward to your comments.

 

This sturdy, barely tamed beast of a tree is a perfect example of Walter’s naturalistic style. From his conifer gallery.

Feeding, Substrate and Watering
Methods of Walter Pall (edited by Victrinia Ridgeway)

“First, I set aside everything that has been written in most bonsai literature about the subject. As technology grants us access to new and more effective methods and products, the way we care for our trees has progressed beyond the boundaries of tradition. It has been a new and modern world for some time, but many have not realized this. Even if some measure of success is achieved with the old methods it can be dangerous if used with modern substrates and practices, or even deadly.

Substrates (soil): Good substrate material must: be of equal particle size, have the ability to absorb water and release it back, have no fine particle organic material, must not decompose easily, be as lightweight as possible when dry, preferably inexpensive and should have an aesthetically pleasing appearance. This would then be: lava, pumice (note: lava and pumice are the two ingredients in our Masters Bonsai Soil), baked loam, Turface, zeolite, Chabasai (a type of zeolite), coconut pieces, bark pieces, Styrofoam pieces (no joke) and a few more which you can find yourself if you have understood the principles. Please note: Some of these materials may not be available in your area…” (continued after the photo and caption)

Another naturalistic bonsai. Naturalistic doesn’t mean ‘left just the way you found it.’ This and others in Walter’s collection may have spent numerous hours being transformed from raw stock to what you see. But what you see, is a tree that looks like it has barely been touched by human hands.

“Normal akadama is questionable as a good substrate as it inevitably decomposes, especially when exposed to winter frost. It can become deadly loam in the pot, choking the flow of water and air into the soil. This is especially true for trees which are only rarely repotted, like collected conifers and old bonsai in general.

Substrates which are not useful: soil, compost, stones, sand etc. Trees grow in sand and flower soil, of course, but it is not an optimal growing medium for health in bonsai culture.
All substrates can be mixed according to your liking and it makes almost no difference. They can also be recycled and used again, but make certain to sift and clean any recycled materials as needed.

There is no such thing as an ‘ideal bonsai substrate’. There are in fact thousands of ideal substrates. I believe that IT DOES NOT MATTER WHAT YOU USE AND IN WHAT MIXTURE as long as it is a modern substrate…”

This should be enough to stimulate your interest. Here’s the rest.

The clean, elegant lines and simple crown give on this bunjin style pine a more refined look that the two trees just above.

 

Here’s what our new Masters Bonsai Soil looks like through the lens of an iPhone. It’s 50% – 50% lava and pumice.