What type of soil is best for Rhododendron

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Rhododendrons and azaleas grow best in light, well-drained soils with good soil aeration and an ample supply of soil moisture during the summer. They can be grown in heavy soils if special precautions are taken.


What type of soil is best for Rhododendron

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Rhododendrons and azaleas grow best in light, well-drained soils with good soil aeration and an ample supply of soil moisture during the summer. They can be grown in heavy soils if special precautions are taken.


Step One

A soil high in organic matter or humus such as decayed oak leaves, pine needles or other acid-type compost is desirable for growing rhododendrons and azaleas. Beware of most peat moss available today. Much of it is of poor quality; often it is very fine and holds too much water for good soil aeration. It is not suitable for mixing with heavy clay soils. In hot or alkaline soil areas where rhododendrons are frequently grown in straight pine bark with little or no soil added, care should be used in obtaining a fine grade or small particle pine bark.


Step Two

Rhododendrons require an acidic soil, ideally with a pH between 5.0 and 5.5. Alluvial or river-bottom soils are often more alkaline, and must be enhanced with fertilizer to increase acidity. Soils too acidic can be made more alkaline by adding ground limestone. Rhododendrons have shallow, delicate roots susceptible to rot. Good soil drainage is essential to the health of the plant.


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