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I have planted 5 human-cultivated-variant blueberry and cranberry in my condo. They don't grow very well and produce sparsely every year. I see some online articles say that adding pine needles to soil (now mainly brown garden soil + peat) can help acid loving berries grow better.

I had only small amount of pine needles, they are dirty, and I fear they contain pest eggs or other harmful bacteria. Meanwhile I have a large amount of free saw dust and some bark residues from pine wood too.

Can I use the pine saw dust to improve the soil, replacing the pine needles? How much percentage should I add? Will they work the same?

kevinskio
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Cheshire_the_Maomao
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1 Answers1

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Either will have minimal effect on the acidity.

Sulfur (or ammonium sulfate fertilizer, if you are the sort of gardener that uses that sort of thing) is the most effective way to acidify your soil for blueberries.

Ecnerwal
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