Are Pine Needles Good For Garden Soil. However top dressing or mulched materials break down so slowly that they hardly make a difference to a soils pH. Blame the trees for being resource hogs not the pine needles for any soil issues.
Pine needles do not significantly impact. The acidity of pine needle mulch remains at the soils surface and does not alter the soil. If your soil is alkaline ie has a pH above 7 and you want to make it more acidic add pine needles to the soil.
They may interfere with seedbed preparation and may result in soil nitrogen depletion.
Some gardeners even mix pine needles into the soil of their acid-loving plants such as rhododendrons heathers blueberries and blue hydrangeas convinced they will make the soil more acidic. Pine needles are a good choice for mulching and really economical if you have pine trees in your yard or pine straw easily available locally. However top dressing or mulched materials break down so slowly that they hardly make a difference to a soils pH. CANNA is the Dutch expert in cultivating plants in cocoponics hydroponics potting mixes.
