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Bulrush Professional Ericaceous Compost 20 litre

Bulrush Professional Ericaceous Compost 20 litre

Item: XSERIC20

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Bulrush Professional Ericaceous Compost 20 litre
Available stock: 50
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Bulrush Professional Ericaceous compost is a peat-reduced product similar to the compost we grow our plants in. It is generally not available elsewhere and is much better than most ericaceous composts sold in garden centres, which is milled to pieces and has no structure.  Bulrush contains a good fibrous peat enhanced with 50% Forest Gold, a composted woodfibre to produce a quality 'open' compost which provides the essential drainage and aeration needed for Rhododendrons to thrive.  With it's low pH, this ericaceous compost is perfect to help establish our full range of plants in your garden.

We recommend at least 20 litres of compost per 5 or 7.5 litre plant on most soils. Then double it for larger plants and double again on poorer soils!







Customer Reviews

By on
"I am delighted with my recent purchase of an XXL Rhododendron. It arrived in peak condition, in bloom and looking healthy as well as beautiful. A few weeks on and the flowers have finished but there is an abundance of new leaves. Needless to say, I am delighted! "
Star Rating 5
By on
"we used this compost when planting the two azaleas we ordered. They are looking very healthy and happy"
By on
"Excellent product, efficient service. Thank you."
Star Rating 5
By on
"I have only just used this bag , but the last bag I bought for a Magnolia { from Millais Nursery } has given the plant a very noticeable great start ., it looks and feels a quality Compost ...................."
Star Rating 5
By on
"My first time using this compost and it is far superior to other brands I’ve tried. It has a beautiful open shredded texture and the plants are responding to it well."
Star Rating 5
By on
"excellent for my needs. use it for my alpine rhododendrons and my other acid likely alpine plants soldanella etc"
Star Rating 5
By on
"As always an excellent product."
Star Rating 5

The Basics

Ideal soil

Acidic soil, good organic content, pH 4.5-6.0. Inkarho range of rhododendrons will tolerate soils up to pH7.5

Sun or Shade

Light dappled shade is best for most varieties.


Refer to hardiness rating. Give young plants protection.

Site Selection

Avoid close to trees, roots, invasive weeds, walls, hot patios, dry banks and waterlogged soils. Do not use weed matting or stone mulch.

Plant spacing

Use the height shown in 10 years as a guide to the distance between each plant. Allow room for plant to fill out. If planting closer for instant impact, be prepared to move plants after a few years.


  • 3 litre pot, dig in 10-20 litres of ericaceous compost.
  • 7.5 litre pot, dig in 20-30 litres of ericaceous compost.
  • 70-80cm specimen, dig in 60 litres of ericaceous compost.
  • 100-120cm specimen, dig in 120 litres of ericaceous compost.

Planting depth

Plant high in the ground, with the top of the rootball visible.


Slow-release ericaceous feed recommended in March and straight after flowering.


Recommended every few years.


The key ingredient! Keep moist all season, especially the critical time at end of June for flower bud initiation. Tap water is better than no water. Heavy dose at least once per week in dry weather.


Ensure good drainage in winter, especially with yellow flowering varieties. Avoid waterlogged sites.


Rhododendrons and Camellias: Not normally required. Tidy wayward shoots after flowering.

Evergreen azaleas and Bloombux can be clipped into a low hedge.

Magnolias and Acers: Formative pruning when young to shape into a tree or bush.


Remove old flower-heads, particularly on young or weak plants.

For further advice see here

Size Guide

Size guide

Delivery & Returns

Our website calculates the delivery charge according to weight and delivery location throughout the UK. To see these charges, please enter your postcode at the checkout, and you will see the charge vary as you add more items to your wheelbarrow.

Please see here for delivery information

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