Mushroom Compost Calculator

Length (cm) x Width (cm) x Depth (cm)
= 1000 Litres OR 1M3
Please Note: Delivery charges apply for Scotland, Wales, Northern England, London and the South West of England. Read More.

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Mushroom Compost

Economical Blended Organic Mushroom Compost

Mushroom compost is an efficient, economical way to condition your soil, improving the quality and nutrient value of the soil it is added to, and promoting improved growth of decorative or food plants.

CPA Horticulture's mushroom compost is composed of composted agricultural straw and rotted manure, resulting in compost that is easy to crumble, spread and work with. Thanks to the compost's chemical and physical composition, it is perfect for improving the texture of heavy clay soils, or adding humus to nutrient deficient soils.

What's more, as our compost is fully steam sterilised before leaving the mushroom farm, it will not introduce any weeds or other pests to your site.

For general soil improvement a 50mm layer should be spread over the area to be treated, then forked or rotavated in. A 75mm layer could be considered with very poor soils.

Mushroom Compost: The Benefits

  • Friable, and easy to spread
  • Increases your soil's physical structure
  • Increases the level of organic material in your soil
  • Suitable for use by landscaping professionals and home gardeners
  • Very economical
  • Steam sterilised
  • Weed free

Product Composition

  • Mid-brown in colour
  • Blended agricultural straw and animal manure
  • pH Level: 6.5 -7
  • Organic Matter: 66%
  • Ammonia: 0.26%
  • Magnesium: 0.4%
  • Nitrate: 0.08%
  • Phosphorus: 0.6%
  • Potassium: 3.1%
  • Total Nitrogen: 2.4%

CPA Horticulture's mushroom compost is available in bulk loose loads and bags, and can be delivered anywhere across the mainland UK. 

For a full technical analysis, please contact CPA Horticulture. 

More Information

Please Note: Mushroom Compost is a natural product, and its colours and textures will vary depending how fresh the compost is. Fresh mushroom compost is lighter in colour with more visible straw which will darken and decompose naturally.

Analysis
pH Level 6.5-7
% Organic Matter 66%
Ammonia - N 126 Mg/l (Fresh) / 0.26%
Magnesium 204 Mg/l (Fresh) / 0.4%
Nitrate - N 41 Mg/l (Fresh) / 0.08%
Phosphorus 1480 Mg/l (Fresh) / 0.6%
Potassium 1480 Mg/l (Fresh) / 3.1%
total Nitrogen (N) 2.4%
Product Code: MC
Availability: In Stock
293 reviews (4.9/5)  293 reviews  |  Write a review
Dermot from Worton on 17/11/2018
293 reviews
An excellent product, especially useful on clay soil. First delivery direct to my allotment and all went perfectly
FMW from Milton Keynes on 16/11/2018
293 reviews
Very happy customer. Delivery of the 40 bags was prompt, the delivery driver was very helpful and got the pallet as close to the house as possible (I have already rung Palletways to commend him). The compost is lovely stuff, no unexpected bits and nice and warm! Little bit pongy, but only to be expected! Half of it on the garden as a mulch already. Will deffo use again.
Neil Dewey from Winchester on 16/11/2018
293 reviews
Quick delivery, arrived when promised, delivery man helpful and efficient. Early days but seems to be a good product.
Robert Della-Sala from Ilmer on 13/11/2018
293 reviews
4th time I have re-ordered the mushroom compost and very pleased at how easy it is to spread and that it gets absorbed into the ground very naturally
Roger White from Harpenden on 09/11/2018
293 reviews
Quality of compost seems very good. Unfortunately the pallet holding the 40 bags collapsed while it was being unloaded but the delivery driver should be commended as he was very helpful and moved all the bags which had fallen and stacked them safely. No bags were damaged so the packaging is very good.
David from Coventry on 06/11/2018
293 reviews
Arrived today & I've spread a few bags over the allotment. |t seems to be excellent stuff - texture and smell indicate it's well-rotted. Packaging was very good too.
Don Cook from Newark on 31/10/2018
293 reviews
This was my third order of bulk mushroom compost from CPA. The service was exemplary, from the moment I placed my order to the tracking and delivery. I know from previous orders that the compost is excellent.
John.H. from RUGBY on 31/10/2018
293 reviews
Great stuff great delivery on time.
John.H. from RUGBY on 31/10/2018
293 reviews
Great stuff fantastic delivery will probably come back for some more.
JDC from Chulmleigh on 30/10/2018
293 reviews
I am a repeat customer because CPA offer such an excellent product, value for money and outstanding customer service. Thank you.
David from Maidstone on 25/10/2018
293 reviews
This is my second purchase of a pallet of mushroom compost. Easy to order, good communications and speedy/efficient delivery. Friendly and helpful delivery company.
Raymond from Ripon on 22/10/2018
293 reviews
Second year I have ordered this and it’s a fantastic value excellent for my rose beds and cottage garden beds
Sue from felsted on 18/10/2018
293 reviews
great product at a great price
anthony guy from andover on 09/10/2018
293 reviews
delivered on time,driver was very helpful,looks like it good compost and the price was right
Steve from Brentwood on 07/10/2018
293 reviews
After a bit of searching and reading reviews I opted for 40 x 75 litre bags from CPA at what seemed the best value around. Bit of a no brainer getting 40 bags instead of 20 given the small additional charge. It was delivered on a pallet from the back of a lorry via lift and hand forklifts. The driver was very personable and brilliant at manouvering the pallet to where I wanted it. As it came in sacks I just barrowed it into the back garden two sacks at a time. Beauty is that it's easier to deploy from sacks and you can just pile up any you don't need immediately. Much more convenient and cleaner than transferring from a bulk bag. It appears to be really good stuff with next to nothing in the way of rubbish - couple stones and pieces of plastic. Only slight downside was it really did pong - old clothes, gloves and a dust mask recommended, but that disappeared after the first rain. When I need more I will return for this and have recommended it to family and friends.
Richard from Billericay on 07/10/2018
293 reviews
Prompt delivery via pallets on truck. Driver was great in getting pallets onto driveway. Compost looks good quality for raised beds.
Michael from Ely on 04/10/2018
293 reviews
This is second year I have ordered mushroom compost from CPA and as before it arrived promptly and is of the same good quality. This year none of the bags were split.
Terry Mason from Brighton on 03/10/2018
293 reviews
Regularly ordered. Good quality and fast efficient delivery. Helpful in bags.
Michael from Ely on 03/10/2018
293 reviews
Second year I have ordered mushroom compost for my raised beds from CPA. Delivered promptly and well bagged on pallet, bags I have opened so far look to be same good quality as last year.
James Martin from Glasgow on 02/10/2018
293 reviews
The ordering process was simple and the price competitive. Delivery went smoothly and I was contacted several times so that I knew when the driver would arrive. The mushroom compost was good quality and overall I have no complaints whatever.
Mark from Colchester on 27/09/2018
293 reviews
Another great service provided by CPA, these guys are always a pleasure to work with
Jane Martin from Salisbury on 24/09/2018
293 reviews
Compost looks good, excellent service, very skilled driver.
Terry Mason from Brighton on 23/09/2018
293 reviews
Good product. Good price. MAkes a difference to soil.
David from Bristol on 20/09/2018
293 reviews
Looks a good product delivery driver was first class he walked 40 sack load 80+ yards to my drive as road blocked ! Ordering easy all in all very happy
Lisa M from Harrow on 17/09/2018
293 reviews
Exceptional staff and service. Great product. Speedy delivery. Definitely use this company in the future.
Paignton Piers from Paignton on 10/09/2018
293 reviews
Good service. Quality product. Steaming hot compost. Perfect for my new lawn. Thanks.
SeanO from Peterborough on 30/08/2018
293 reviews
Affordable product, easily ordered and delivered in timely fashion by a helpful driver. Recommended.
David Stanley from Shrewsbury on 24/08/2018
293 reviews
As always, really good stuff, keep coming back year after year, not found any where else as good, thank you. David
t m burns from derbyshire on 13/08/2018
293 reviews
1st order of mushroom compost for my no dig beds.looks brilliant,and no doubt will do the business.palletways delivery spot on,two texts on the morning of delivery,driver also phoned prior to delivery.very friendly chap a real credit.in all great product and delivery service.
Paul from Cheltenham on 08/08/2018
293 reviews
Mushroom Compost.. Not quite as rotted down as I expected, still some very coarse bits of straw. However using as a top mulch so it's acceptable. And all the plants that I have dressed this around all seem to be looking healthier that 4 week previous to adding. Delivery was quick and the driver very helpful. Will buy this again - have recommended to fellow allotmenteers.
rodger palmer from tunbridge wells on 22/07/2018
293 reviews
bit premature as not due for delivery until this Tuesday 24th July but will write a review once I have received my order
Ken from Reigate on 02/07/2018
293 reviews
Delivered on time and placed on drive, Bags make it easy to move around garden and looks good, well rotted compost. Good service.
Tony from Bognor Regis on 17/06/2018
293 reviews
The compost was deliverd on the day stated but prior to time shown on docket. The compost seems fine and just what I wanted for my no dig vegetable garden.
Samuel Gee from Southampton on 12/06/2018
293 reviews
Superb stuff and a good price
Trudy Visser from Stretton, Oakham on 06/06/2018
293 reviews
Order was very promptly attended to and delivery date given. Delivery time given and delivered within the specified time. Opened one of the bags and product was as expectecd.
Fran G. from Southwest on 30/05/2018
293 reviews
Delivery by Palletways went smoothly. Driver was helpful, and their 2-hour delivery window was excellent. The quality of the mushroom compost looks good, fingers crossed the plants like it just as much.
Bill from Herefordshire on 18/05/2018
293 reviews
First time using mushroom compost and buying from CPA Horticulture. Impressed with both. Palletways delivered on time and dropped the compost off exactly where I wanted it. All round very happy.
Mark smith from DRYBROOK on 18/05/2018
293 reviews
Arrived early in morning, would of been easier for everyone if on two pallets, is woodier than we expected but time will tell if the plants like it. For the price we're happy
A Chase from Sevenoaks on 16/05/2018
293 reviews
Pleased with the purchase . Delivered within 10 minutes of the forecast delivery time . Quality looks very good
Tony Ward from Crowborough on 07/05/2018
293 reviews
Excellent product. However 40 bags overloads the single pallet and the pile collapsed as it came off the truck !!
Sue from Dorsey on 05/05/2018
293 reviews
Pleased with the product. The delivery driver was excellent - cheerful and helpful. I will order again
Simon from Giltbrook on 03/05/2018
293 reviews
Great compost at a good price, quick on time delivery. I had a text on the expected delivery day giving a two hour window, the driver then phoned half an hour before arriving. I will definitely be buying from CPA again. Thanks also to Mitchells who delivered it in good order.
Bob from Leeds on 30/04/2018
293 reviews
This mushroom compost is excellent stuff. Clean, weed free and in bags that are easy to handle, it is great applied as a thick mulch. It is largely odour free and keeps beds looking tidy all summer as well as holding moisture and suppressing weeds. I use it everywhere except around plants and shrubs needing acid conditions as they don't like lime.
George from Tring on 28/04/2018
293 reviews
The mushroom compost is excellent. Over the next 12 months, I'll be looking to use more of CPA's products.
kevan Wind from Calne on 27/04/2018
293 reviews
Order came as requested. The driver was pleasant. He phoned an hour before arriving and unloaded quickly and with no mess. Compost was as advertised so what else could they have done?
Kevan Wind from Calne on 27/04/2018
293 reviews
Order came on time. Had a call an hour before to say he was coming. Quickly unloaded with no fuss. Compost looks good and as advertised. What else could they do? Oh and the driver was pleasant too.
Ann from Reigate on 27/04/2018
293 reviews
All went smoothly, ordered mushroom compost for a couple of customers. Delivered as asked although the lorry was bigger than anticipated, it seemed to manage okay. Product good.
Ian from Chesterfield on 26/04/2018
293 reviews
Great product, well wrapped on a pallet, driver rang ahead but I missed his call ( I was in the garden). Have so far spread about 10 bags, nice and easy, just empty a bag into the wheelbarrow and shovel it out onto the beds, easy peasy. Whats not to like.
Terry from Brighton on 26/04/2018
293 reviews
Great product. Use all the time. Delivery always prompt.
Sid from Newcastle on 10/04/2018
293 reviews
Online ordering was hassle free. Unfortunately didn't deliver the day as agreed but did deliver the following day.
Sue from Essex on 10/04/2018
293 reviews
Brilliant service, great product
SHONA MCNAMEE from on 05/04/2018
293 reviews
Lovely compost - looks great and spread very nicely. Hope the worms and plants like it!
Dermot Hall from Worton on 02/04/2018
293 reviews
Excellent product, excellent service.
Adam from Lincoln on 28/03/2018
293 reviews
2nd time ordering. Very good product
Mark from Colchester on 27/03/2018
293 reviews
Brilliant service, lovely company to do business with
Adrian Allen from northants on 27/03/2018
293 reviews
all looks good. Delivery on time and driver very helpful as we live up a single track drive.
Parry from Lee-on-Solent on 24/03/2018
293 reviews
Prompt delivery but in a huge lorry that had to be unloaded manually onto our drive, then moved to our garage. Excellent product.
J Cooper from Saffron Walden on 24/03/2018
293 reviews
Excellent product, delivery driver very helpful, although some bags had split in transit, but this was dealt with efficiently. Recommend no more than 20 bags per pallet or use of smaller bags to minimise this tendency as the product is so heavy. Good stuff though.
d. knight from Chipping Norton on 21/03/2018
293 reviews
Great service and product. Well packed and easily dispersed on ground. Good quality compost
Cerith from St Clears on 21/03/2018
293 reviews
Exellent to deal with Rupert especially helpful when palletway refused to even turn off the main road. Thanks Cerith
Cerith from St Clears on 21/03/2018
293 reviews
Good service Rupert especially helpful when palletway refused to even turn off the mail road- not used the product yet but I’m sure it will be fine
Pat Edwards from Gt Manchester on 15/03/2018
293 reviews
Mushroom compost looks great, looking forward to improved crops and flowers.
Mike Harris from Nottingham on 15/03/2018
293 reviews
2nd time I've used this company. Both times were excellent, prompt and on time delivery. Well packaged and exactly as required. Highly recommended.
jwhiteley from LEEDS on 13/03/2018
293 reviews
Used Mushroom manure. Was excellent in quality well rotted without too much straw. Used to improve my lawn soil over two winters and was very effective. Delivery was prompt and the driver v helpful.
jwhiteley1@tiscali.co.uk from LEEDS on 12/03/2018
293 reviews
The service was very good and I spread the manure over my lawn to increase the organic matter after years of weed and feed, the results have been excellent. The driver was v helpful as I have a steep drive he used his pallet trolley to move bags to side of house.
The Talented Gardener from Brighton on 10/03/2018
293 reviews
Good quality and good value product. Definitely improves soil condition and promotes plant growth. Delivery prompt and efficient - regular orders placed are of consistent good quality.
Ian Warren from Chichester on 07/03/2018
293 reviews
Excellent service with a real attention to detail and customer care. Good quality mushroom compost which was delivered on time and placed where required.
Richard from York on 05/03/2018
293 reviews
Arrived on time and seems good quality.
Richard from York on 05/03/2018
293 reviews
Arrived on time and it looks ok.
Chris from Chippenham on 05/03/2018
293 reviews
Compost arrived when advertised - despite the snow. Haven't grown anything yet but so far so good.
Sexton from Colchester on 26/02/2018
293 reviews
Excellent delivery service and very good product; very satisfied
Mrs B Gregory from Stow on the Wold on 26/02/2018
293 reviews
This was my first order of mushroom compost , delivered efficiently to my garden gate. The product is excellent and arrived in easy to handle, strong plastic bags of 75 L each - two pallets at 20 bags. This quantity is sufficient to cover all beds in my small garden - approx. square meters. My only -slight- criticism is that despite my efforts to explain we are situated down a narrow lane with restricted turning area the consignment arrived on a very large truck which was far to big to get to our property (12 tonnes I believe). Which meant the delivery had to be returned and transferred to a smaller van and so arrived a day later than promised.
White from Chester on 25/02/2018
293 reviews
This is the second year that I have used this product and will use again next season. All in all a very good experience from ordering to delivery.
Jonathan Furber from Bristol on 24/02/2018
293 reviews
Smells like powerful stuff but looks great and spreads easily. Service and delivery outstanding and very good value compared with other products.
graham from nr leicester on 23/02/2018
293 reviews
deliverd on the day I asked for driver rang 1 hour before to confirm looks like good compost have yet to use it bit it smells n looks good
Kate Layton from Hampstead Norreys on 23/02/2018
293 reviews
Great service. Everything went as predicted. Freindly helpful delivery driver. Have spread a lot of the mushroom compost and it looks good.
Alastair Sampson from Derby on 20/02/2018
293 reviews
Really pleased with the product. Bought to improve impoverished soil and as a weed suppressant. Friendly efficient service. The delivery driver was helpful also.
Ferguson from Kidlington on 12/02/2018
293 reviews
Delivery right on the time given. Everything was very easy with no problems.
John Dance from Woking on 12/02/2018
293 reviews
My order for mushroom compost was dealt with helpfully and efficiently and I am confident that when I recover sufficiently from humping the bags to open them I shall find the contents just what I wanted.
Mark from King's Lynn on 11/02/2018
293 reviews
Easy to order and delivered when promised. Good communication via tracking and driver called prior to delivery. Compost was packed in clean sealed sacks. We have started to use the compost and it is well rotted and should make a vast improvement to our very sandy and poor garden soil. Very pleased.
Alison from Bere Alston on 10/02/2018
293 reviews
All delivered as promised - very smooth no problems
Andrew Campbell from Cottingham on 07/02/2018
293 reviews
Good value soil enrichment/top dressing/mulch. Thanks. Will buy again.
Justin from Bromyard on 06/02/2018
293 reviews
Well packed and efficient delivery. Compost looks good.
Debra from Birmingham on 03/02/2018
293 reviews
Really good quality mushroom compost. Vey quick delivery.
Mark from Essex on 02/02/2018
293 reviews
I have used CPA for a few years now, mushroom compost always in an excellent friable condition and CPA themselves have been brilliant at helping with the odd unusual request. Thank you for your help
Keith from Hampton on 31/01/2018
293 reviews
Excellent quick service.................................................
PHILL HOWES from HOUGHTON CONQUEST BEDS on 27/01/2018
293 reviews
I decided to adopt a no dig policy for my garden and have found the mushroom compost a first class product good consistency and was impressed with the professionalism of your company .Communications and delivery were excellent. Thankyou
Chris from Waterlooville,Hampshire on 26/01/2018
293 reviews
This is our fifth load. Seems a good product. Delivered on the day of our choosing. Very straightforward ordering process.
Tim Thorogood from Swansea on 24/01/2018
293 reviews
Excellent product, delivered well.
C Ponsonby from Lechlade on 24/01/2018
293 reviews
Excellent service - easy to order online, delivered when it said it would be and very good compost.
Bill from Bristol on 23/01/2018
293 reviews
Excellent service, from delivery advice over the phone to actual delivery.
Bill from Bristol on 23/01/2018
293 reviews
Excellent service, from delivery advice to actual delivery.
Sue from Coalville on 23/01/2018
293 reviews
Helpful driver. Compost well packed and weather proof. Excellent for raised beds.
Emm from Hitchin on 22/01/2018
293 reviews
Delivery came exactly in the window specified would definitely use again
R.Hester from Chiddingfold, Surrey on 21/01/2018
293 reviews
Not used the product yet, but it arrived on time and as described.
Steen from Worcester on 20/01/2018
293 reviews
Very good compost for the garden and the delivery was on time. This is the 2nd lot we have bought this winter. Will be buying next time too.
James Elder from Sheffield on 16/01/2018
293 reviews
Efficient delivery and product looks good. Too early to say how well it will improve the soil.
Henry from Petersfield on 08/01/2018
293 reviews
A very quick, efficient and economical service!
Helen Payne from Rendham on 31/12/2017
293 reviews
I think this must be the 4th consecutive year I've covered my garden in this spent mushroom compost. It's brilliant - suppresses weeds and seems to give all herbaceous borders a good feed over winter.
JOHN WOOD from DERBY on 21/12/2017
293 reviews
Arrived on the day given. The compost looks really good but don't know any results yet because it has only just gone on the garden. Will definitely buy some more when required.

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