Journal of NACAA

Garden Myth-Busting for Extension Educators: The Science Behind the Use of Arborist Wood Chips as Landscape Mulches

ISSN 2158-9429

Volume 15, Issue 2 - December 2022

Editor: Linda Chalker-Scott


The current trajectory of climate change suggests that summer temperatures will rise, and drought conditions worsen in many parts of the world. Mulches can reduce soil water loss in gardens and landscapes. Not all mulches are created equal, however, and some mulches can damage both soil and plant health. This literature review will focus on arborist wood chip (AWC) mulches – arguably the most beneficial landscape mulch – and address common misconceptions about this mulch material. We also provide science-based recommendations for using AWC mulches to enhance the resiliency of managed landscapes.

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