Last updated: March 11, 2022

Our method

22Products analysed

53Hours spent

34Evaluated articles

212User reviews

A Rhododendron Soil is a soil that has been amended with organic matter and composted manure, which makes it more acidic than most soils. The pH of the native soil in our area ranges from 6 to 7 (neutral) up to 8 or 9 (alkaline). Most rhododendrons prefer an acid environment for optimum growth.

The best Rhododendron Soil in the UK: Our selection

Rhododendron Soil: Frequently asked questions

What types of Rhododendron Soil are there and what determines a good product?

There are three types of Rhododendron Soil. They are peat, pine bark and a combination of the two. The type you choose depends on your own preference as well as what is available in your area.

A good Rhododendron soil will be acidic, well drained and have a pH of 5.5 to 6.0 (acidic). It should also contain plenty of organic matter such as peat moss or composted leaves in order to maintain the acidity level over time.

Who should use a Rhododendron Soil?

Rhododendrons are a very popular plant and many people want to grow them. The problem is that they need acidic soil, but most gardeners have alkaline soils in their yard. If you live in an area where the pH of your soil is above 7 then it’s time for you to use our special Rhododendron Soil Mix.

Based on what criteria should you buy a Rhododendron Soil?

The best soil for rhododendrons is a well-drained, sandy loam with plenty of humus. If you can find this in your area and it meets the other requirements listed below then buy it.

When comparing a Rhododendron Soil, you should look out for the following things:

1. The pH value - it must be between 5 and 6,5;

2. The organic matter content (humus) - it must be at least 4%;

What are the advantages and disadvantages of a Rhododendron Soil?


The Rhododendron Soil is a very well drained soil. It drains quickly and does not hold water for long periods of time. This makes it perfect for growing plants that like to be kept moist but do not want to sit in soggy soils or have their roots sitting in standing water all the time, such as rhododendrons, azaleas and camellias.


The main disadvantage of a Rhododendron Soil is that it can be difficult to work with. It tends to have very little organic matter and does not drain well, so water will sit on top for long periods of time. This makes the soil prone to compaction which leads to poor root growth and plant health issues in general. Additionally, this type of soil has low nutrient levels as most nutrients are tied up by the minerals within it rather than being available for plants’ use or leaching out into surrounding areas where they could benefit other plants growing nearby.

Shopping Guide: Everything you need to know

Which brands and manufacturers are represented in our review?

In our review, we present products from various manufacturers and suppliers. The list includes products from the following brands and manufacturers, among others:

  • Miracle-Gro
  • Sulphur soil

What is the price range of the featured products?

The cheapest Rhododendron Soil in our review costs around 4 pounds and is ideal for customers who are conscious about their money. However, those who are willing to spend more money for better quality can also spend around 20 pounds for one of the more expensive products.