Mushroom Compost

Mushroom Compost

Not only is our mushroom compost an exceptional soil conditioner, it is very economic to use on a large scale.


Enquires & Orders

For prices and delivery contact us Monday to Saturday from 9am to 6pm.

01302 725544

Email Mr Muck

We offer a reliable, professional service for domestic & trade customers, delivery to all regions within 5 working days.

Rated 4.60 out of 5 based on 10 customer ratings
(10 customer reviews)

Bring life back into tired soils with Mr Muck’s mushroom compost

Mr Mucks Mushroom Compost is a mix of chicken and horse manure with wheat straw. Not only is our mushroom compost an exceptional soil conditioner, it is very economical to use on a large scale.

Mr Mucks Mushroom Compost is a mix of chicken and horse manure with wheat straw. Not only is our mushroom compost an exceptional soil conditioner, it is very economical to use on a large scale. It will improve the structure of heavy clay soils, add humus to thin sandy or chalky soils, enrich all soils and supply nutrients for the healthy growth of plants.

Mr Mucks Mushroom Compost will also increase the water-holding capacity of the soil, which decreases your watering needs.

What is mushroom compost?

Mushroom compost is a type of slow-release, organic plant fertiliser. It is a viable and useful by-product of mushroom farming. The compost is made by using organic materials such as hay, straw, corn cobs and hulls, and poultry or horse manure. These products are formed into a rich organic media.

The mushroom growing process varies slightly between individual growers, this leads to mushroom compost recipes differing to suit the needs of each grower. For instance, additional materials like gypsum, peat moss, lime, soybean meal, and various other organic items may be added to the compost as well. These products are formed into a rich organic compost that serves as the nutrient source for mushrooms.

How is mushroom compost made?

To start with the mushroom compost is sterilised and inoculated with mushroom spawn. Once the mushroom spawn is mixed into the compost, it is steam pasteurised to kill weed seeds and any other unsafe agents. Mushroom composting takes about three to four weeks to process, during which it is monitored closely to maintain adequate temperatures for optimum production. After the process is complete, the leftover compost is disposed of and sold as fertiliser, up to 2 crops of mushrooms are taken from the compost before being released to the landscape market.

Why use mushroom compost?

Mushroom compost is excellent for soil modification as it can radically enhance plant growth, even in the deprived type of soils. This is due to the fact that most of the amended compost serves effectively to improve the clay soil structure, increase soil fertility and lessen the chances of surface crusting as well as compaction. It can also help to improve drainage and ensure that the most natural nutrients are provided to plants which automatically minimizes the need to use fertiliser. Overall, this form of compost is highly beneficial to the soil quality.

How to use mushroom compost?

As a fertiliser and soil amendment, mushroom compost supports plant growth in a variety of applications such as herbaceous beds, shrubs, vegetables and landscaping.

  • Mulching – use 5-6 inches (13-16 cm) of Mr Mucks Mushroom Compost as a mushroom mulch around shrubs and herbaceous perennials to feed plants, suppress weed growth reduce the loss of nutrients from the soil and minimise the work of weeding borders. Through the summer the mulch will retain moisture and protect the soil from drying from sun and wind movement.
  • Soil conditioning – bring dead soil back to life, use Mr Mucks Mushroom Compost in heavy clay soils to improve the condition or use in light sandy soils to give body and retain moisture. Use 5-6 inches (13-16 cm) forked well into the soil to improve the condition of the soil, reducing heaviness and adding nutrients.

Trades & Allotments

We offer professional and cost-effective services for tradespeople or associations requiring larger quantities of Mr Muck’s products.

Quantities & delivery

We are flexible and happy to supply the exact quantity you require. Our trade loads start with 200 sacks up to larger loads of 500+ bags supplied on pallets.

We offer delivery throughout the UK to your specified address, generally within 5 working days.


Office hours are Monday to Saturday from 9 am to 6 pm, for sales and general enquiries please call us on 01302 725 544. For out of hours enquiries please send us a message using the contact form.

10 reviews for Mushroom Compost

  1. Rated 5 out of 5


    Good value
    I just took delivery off 150 sacks of Mr Muck’s mushroom compost good value compared to other products on the market

  2. Rated 5 out of 5

    Oakdale Landscapes, Cheshire

    Superb soil improver
    Great compost reliable service been using Mr Mucks for the past 4 years on different projects very pleased.

  3. Rated 5 out of 5

    Mrs Bell, Bath

    New garden heavy clay
    Just landscaped a new garden, the mushroom compost was very good for breaking down the clay would order again.

  4. Rated 5 out of 5

    Miss Fisher, Halifax

    Good bulk soil improver
    Good compost for lighting heavy soil most of my garden is on blue clay the mushroom compost is really helping to break down the soil structure great results for a first time gardener would be happy to use again.

  5. Rated 1 out of 5

    Mrs Cole, Derby

    Great service would use again
    Well rotted compost and very helpful customer service thanks again.

  6. Rated 5 out of 5

    Mr Todd, Wigan

    Good rotted compost
    Will keep the frost out this Winter!

  7. Rated 5 out of 5

    Mr Fontwell, Sussex

    Very pleased with the quality
    Just to say the mushroom compost arrived yesterday and I’m very pleased with the quality. May I also pass on a very good report about the helpful driver who could not do enough to help with positioning this load so as to cause the least inconvenience. Top marks to all concerned.

  8. Rated 5 out of 5

    Les Asquith

    Excellent service & great product
    Good compost for helping to break down a heavy soil. Also received prompt delivery & an excellent service from the Company. Would definitely use them again.

  9. Rated 5 out of 5

    Mr Muck

    Excellent Service
    I ordered some mushroom compost and then got a trapped nerve in my neck. Tom was always helpful although exasperated when I told him the second date we’d arranged was when I was taking my car in to be repaired. The service goes on to the delivery drivers of another company too. The local people knew where my allotment was and the driver managed to drop the pallets right by my plot.

  10. Rated 5 out of 5

    Anita Sawyer

    What a find!
    The mushroom compost is the best I have yet found, not only that, the delivery was FREE, Tom was efficient, helpful and friendly in all communications and the delivery driver could not have been more helpful in trying to position the pallet in the best place for me. I will certainly use this company again and would recommend Mr Muck to anyone!

Add a review

Your email address will not be published. Required fields are marked *

Enquiries & Orders

Call us on 01302 725544 Monday to Friday from 9 am to 5 pm and Saturday 10 am to 3 pm.

Family Business

Established in 1996.

Expert Advice

Just a phone call away.

Clean & Odour Free

Supplied in air-tight sealed bags.

Nationwide delivery, we offer a fast and reliable
delivery service direct to your garden or allotment.

National Delivery

More manure, compost & soil conditioners

Horse Manure Compost

The perfect manure for lightening heavy clay soils and giving body and nutrients to light or sandy soils.

21 Reviews

Mushroom Compost

Not only is our mushroom compost an exceptional soil conditioner, it is very economic to use on a large scale.

10 Reviews

Ericaceous Compost

Ideal for container plants, planting out and mulching. Specially formulated to ensure strong growth for acid loving plants.

4 Reviews