Hardwood Mulch and Roses
Name: David H.
Date: Saturday, July 06, 2002
Can using a hardwood mulch cause damage to pot grown
hybrid rose bushes? The concern is the chemical "Juglone" which may be
present from certain hardwood trees.
As long as the hardwood mulch does not come from black walnut trees (the
source of juglone), then it should not cause a problem.
Anthony R. Brach, Ph.D.
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Update: June 2012