Pine needles make a great mulch, but do they make soil acidic, or is this a gardening myth? I ask Stephen Legaree to share his thoughts on the topic. Also, please see the links to sources on this topic below:

Links provided by MrChipGardener:

Forest Industry Council –

Washington State University –

Links to additional sources:

Colorado State University Extension

“Decoding Gardening Advice”, p. 49

Stephen also used these references:

Wood Chip Mulch: Landscape Boon or Bane?

Acid Rain Effects – Soils

Featured Videos:

Blueberries! A New Edible Perennial in Our Garden –