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I live in Lake Oswego, Oregon (just... | Almanac.com

I live in Lake Oswego, Oregon (just...

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I live in Lake Oswego, Oregon (just outside Portland), and I have an enormous problem with moss in my lawn. Every year I get rid of it, but every spring it comes back even worse. I’m winning the battle but losing the war. How can I get rid of the moss for good?
Moss is usually caused by poor drainage and lack of aeration. The best way to improve drainage is to install rows of 3- to 4-inch agricultural tiles 12 to 15 inches deep, with rows 12 to 15 feet apart. Incorporate liberal amounts of organic matter into the soil. Moss also means the soil is low in fertility, so we recommend applying a 4-12-4 or 5-10-5 fertilizer.

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