terra cotta

  1. J

    Colander vs Terra Cotta?

    My understanding is that a colander can be used for pine trees in an effort to make the roots compact and fiberous enough for placement in a bonsai pot. Any roots that are near the surface of the colander will dry out and die back creating a dense root ball. Doesn't terra cotta do a very...
  2. HorseloverFat

    Terra Cotta: My musings on...and resulting actions with.

    I have been experimenting with terra cotta lately. I have performed numerous tests using varying dry/wet filtration methods relying mostly on particulate sizes and impurity concentrations of clay from different areas.
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