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Comments:
by Pat Galloway
on September 18, 2018 at 11:32 AM
Is redwood sawdust good to use for mulching blueberries? Or, will is not allow anything, including my blueberries, to grow.
Reply by Kamille Hammerstrom
on September 21, 2018 at 1:22 PM
Hi Pat,  
 
From what I have read, it is common to use sawdust for mulching blueberries because it helps to lower the pH of the soil and blueberries are an acid-loving plant. However, I also saw some suggestions that mulching with sawdust might require additional nitrogen fertilizer because microbes will use nitrogen in the soil to break down the sawdust. If you choose to mulch with sawdust, keep an eye on your plants to make sure they don't start showing signs of nitrogen limitation.  
 
UC Master Gardeners of Monterey and Santa Cruz Counties
 
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