Quote:
Originally Posted by MS Fowler
Serious questions. What is the pH of pine straw? What crops would benefit, and what crops might be harmed by its use?
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Very low pH. It's somewhere around 4. Acid loving plants love it. Blueberries, Azaleas. Mountain laurel. Non-acid loving plants wont thrive in soil rich in pine needles.
Also, pine leaf fascicles (heh) have a lot of terpenes and sequiterpenes which are highly resistant to decomposition, which is why they make good mulch.