Does anyone have ideas on how to process landscaping bark-mulch into smaller pieces for substrate?

[WNC Bonsai]

The stuff you buy at Lowes, Home Depot, etc. is bagged by different regional contractors so the size fractions and quality differ accordingly. You might find a great product at your local store that is crap at my local store. And if the contractor changes from year to year so might the quality.

 

[Cruiser]

For anyone else wondering..

Process bark chunks into smaller bonsai substrate

27 gallons of small nugget df bark. $10.00 from a local landscape supply. The chunks are mostly too big to use for bonsai. Sifting nets some useable particles, but not many; and definitely not worth the time and labor involved. Bark chunks need to be broken up. What is an efficient way to do...

www.bonsainut.com

 

[Lorax7]

I only use bark in my substrate for tropicals, so I don’t need large quantities. I’ve found that the fir bark sold at the local pet store for reptiles is the right size and very clean.