What are Acid Loving Plants
Plants that require a more infertile or acidic soil are classed as ericaceous. Plants such as azaleas, rhododendrons and camellias love soil which is acid-rich and will struggle to grow if your soil is more alkaline.
You can get around this issue by using an ericaceous compost, which is designed to introduce an acidic pH level into your soil. Therefore you will need to test the pH level of your soil to discover its acidity and alkalinity levels:
Acid loving plants need an extra boost of Iron to assist with the formation of Chlorophyll. This in turn keeps leaves green and healthy. It also is necessary for some enzyme functions such as energy production. An ericaceous compost is more suitable for growing these acid-loving plants, and Westland John Innes Ericaceous is perfect this as it contains iron for greener foliage and 4 months feed.