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levels of some of the major elements required for plant growth, such as phosphorus, magnesium, and potassium. If lime is needed, now is a good time to apply it.
Pine needles are like good building insulation — full of air spaces. They insulate the soil and make an ideal winter mulch for perennial flowers, small fruit plants (especially strawberries), and acid-loving shrubs and trees. Pine needles prevent alternate freezing and thawing that may heave shallow-rooted plants out of the ground, a problem especially serious with heavy soils.
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