A Perlite Primer – The Big White Stuff

March 23, 2010 1:51 pm

Perlite large_03Large, coarse perlite alone may not be the best aggregate for a peat-based growing medium. In general, a mix of different sizes is desirable to provide uniformly distributed air spaces and to avoid the negative aspects of the ‘sand & rocks effect’ or in this case the ‘peat and rocks effect.’ How do sand and rocks relate to a growing medium? You’ve probably seen the demonstration (often used in time management presentations). –Kathryn Louis

Read More in The Sun Gro’er Issue 5/1 (2010)

Leer más en The Sun Gro’er Issue 5/1 (2010) Spanish/Español

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