Compost Soil Improver Bulk Bag

£100.00

A peat-free soil improving compost which will enhance and revitalise your soil naturally by adding valuable organic matter. Contains approx. 0.5m³ (500 litres) when packed.

PRICE INCLUDES VAT & DELIVERY TO MOST UK MAINLAND ADDRESSES

Rolawn Compost Soil Improver is a natural, peat-free soil conditioner/improver made from composted organic matter. It is highly fertile and will improve the structure of clay, sandy or chalky soils by increasing the organic matter content. Improving the soil’s structure will enhance its drainage characteristics and air and water holding capabilities, all of which will result in healthier plant growth.

Bag Size: approx. 0.5m³ (500 litres) when packed
Coverage: Up to 10m² at a depth of 50mm

  • Improves soil fertility.
  • Improves moisture and nutrient retention in sandy and chalky soils.
  • Helps break up clay soils, improving drainage and workability.
  • Friable and light, easy to barrow, spread and work in to the soil.
  • Peat free.
  • Minimal stone content.
  • Dark brown appearance.
  • Can be used as a multi-purpose compost for containers and potting on.
  • Not suitable for use as seed sowing compost.
  • Produced in accordance with BSI PAS100:2018.
  • Weight to volume ratio (bulk density) is typically around 350kg to 570kg per 0.5m3 bag.
  • Convenient bulk bags minimise waste and mess and are easy to store.
  • Apply anytime, but care must be taken to avoid digging/forking wet soil, as it may damage the soil structure.
  • Can also be applied as a mulch.

Typical application rates for improving topsoils with low levels of organic matter:

  • Heavy clay soil – a layer, 75mm deep, should be incorporated to a depth of 200mm
  • Chalky soil – a layer, 50mm deep, should be incorporated to a depth of 200mm
  • Light sandy soil – a layer, 30mm deep, should be incorporated to a depth of 200mm

Each bag covers:

  • up to 6.7m² at a depth of 75mm
  • up to 10m² at a depth of 50mm
  • up to 16.7m² at a depth of 30mm

Ordering FAQs

Our full range of Rolawn products is available to purchase directly from us through this website, with delivery available throughout the UK mainland.

We also have a nationwide network of stockists, including garden centres, builder’s merchants and specialist turf and topsoil suppliers. You can use our Stockist Locator to find your nearest branch.

If you provide a valid email address during checkout you will receive a confirmation email containing full details of your order; this is also your VAT invoice.

You will find our VAT registration number and company details in the footer of the email.


Yes, unless stated otherwise, all prices quoted on our website include VAT at the current rate.

Once you have entered your postcode and selected any delivery options the total cost including VAT and delivery will be shown in the basket before you proceed to our secure checkout.

Please note, lawn seed is zero-rated for VAT.

For turf and bulk bags you can choose a convenient delivery date in our secure checkout.

Please note the delivery date selected in the basket does not apply to products which are delivered by courier. If you have provided a valid email address or mobile number you will receive a notification from the courier of the intended delivery date with options to select a more convenient date if necessary.

You can find full details of our returns and refunds policy here.

If you would like to cancel your order, please get in touch as soon as possible and we will endeavour to fulfil your request.

If your order has not been despatched, we will cancel the order and you will be refunded in full.

If your order has already been despatched, we will request the product is returned to us or it can be refused at point of delivery. The cost of returning the goods to Rolawn will be deducted from any refund due.

Please note, depending on the product, orders can be despatched up to 4 working days before delivery, or earlier if delivery is to a postcode where extended lead times are required.

Please see our Terms & Conditions for full details of our Cancellation and Refund Policy, including exceptions for the return/cancellation of Turf.

No, we do not currently offer any small bags.


Delivery FAQs

Rolawn can offer free next-day delivery to EH postcode areas when orders are placed before 10am Monday – Thursday. Alternatively, you can choose to collect your products in person from either the Edinburgh or Livingston depot. Call us on 01904 757372 to enquire today. However, we do deliver to the majority of mainland addresses in Scotland. Any applicable surcharges for deliveries in remote areas will be shown in checkout and are detailed within our Delivery Policy.’

Delivery is available to UK mainland addresses only.

Saturday delivery is currently unavailable.

Timed delivery slots are currently unavailable.

Standard delivery of turf and bulk bags is usually within 3 to 4 working days. The next available delivery dates are shown in checkout after entering your postcode.

When you order before 3pm, Monday to Friday, delivery can be made in two working days by selecting Express Delivery in the basket, for which an additional charge applies.  When you order after 3pm on Thursday the earliest day for delivery is Tuesday.

Extended lead times apply to the following areas: AB, DD, IV, KW, PA20+, PH6-11 & PH15+.

Please note turf can only be delivered Tuesday to Friday.

Lawn care items, Lawn Seed and Groright (excluding Lawn Topdressing) are delivered by courier and will be delivered separately to turf and/or bulk bags, therefore selected delivery dates may not apply to these products.

Turf and bulk bags

Deliveries will usually be made anytime from 8am up until 6pm on your chosen delivery day.

If your order has not arrived within 24 hours of the agreed date, please contact us.

Products delivered by courier

For lawn seed & fertiliser deliveries by courier, DPD Local will send you a notification with an estimated delivery slot, providing we have a valid mobile number or email address on the order.

For further delivery information and details of supplementary charges please see our Delivery Policy.

It is best if you are in to accept the delivery. We will attempt to deliver if you are not present and the driver will determine the most appropriate positioning for your goods. With unattended deliveries, Rolawn cannot accept any liability for theft, product deterioration or consequences arising from the positioning of your delivery.

Deliveries of lawn fertiliser and lawn seed are made by DPD Local courier. If you are not available to take delivery the courier will leave a card at the delivery address confirming that they have tried to deliver. Follow the instructions on the card to rearrange delivery. You will also receive an email, text or notification via the DPD app giving you the option to rearrange your delivery with the courier or arrange for it to be left somewhere safe.


Kerbside delivery means that the delivery will be placed as close to your property as possible, as deemed safe by the driver. In most cases, this will be on the pavement outside your property.

To avoid damage to your property by heavy vehicles, delivery of turf, topsoil, bark, soil improver and topdressing can be made to kerbside only. This means we undertake to place the goods as close to your property as deemed safe by the driver.

For further information regarding our method of delivery, please see our Delivery Policy.


The delivery method and type of off-loading depends upon your delivery postcode.

Turf and bulk bags are generally delivered on pallets and off-loaded using a tail lift and positioned using a manual pallet truck. Manual pallet trucks can only operate on a flat, level, concreted, or similar firm surface. They cannot operate on slopes, gravel, earth, grass or any other type of non-solid surface.

Within the M25 and some surrounding areas, pallets of turf/bulk bags will usually be off-loaded using a vehicle mounted hydraulic crane (‘hiab’) which lowers the pallet/bulk bag to ground level. Bulk bags will not be delivered on pallets when delivered via ‘hiab’.

For further delivery information please see our Delivery Policy.

If you have any concerns about delivery, please contact us as other options may be available.

Delivery is to kerbside only. Turf and bulk bags will usually be offloaded using a tail-lift and pallet truck and therefore cannot be lifted over a hedge or fence. Please read our Delivery Policy for more information.

No, delivery is to kerbside only. Further information can be found in our Delivery Policy.

Our bulk bags and pallets are ‘non-returnable’. Please dispose of them responsibly.

Once you have placed your order we will send an email confirming your purchase and delivery details. If the email does not reach you, please check your junk or spam folder; if it hasn’t arrived please contact us.

If you have ordered lawn seed or fertiliser you will receive notifications about delivery from the courier, DPD Local, via email, text message or the DPD mobile phone app.

If you have ordered turf or bulk bags you will not receive any further communication unless you have specifically requested this in the delivery notes section. Unfortunately we cannot guarantee a call ahead from the delivery driver, as it is not always possible for the driver to stop to make a call.

For deliveries of lawn seed and fertiliser which are sent by courier, you will receive notifications via email, text message or the DPD app to enable you to track delivery of your order, if you have supplied us with a valid email address or mobile number.

For deliveries of turf or bulk bags, tracking isn’t currently available with the third party carriers we use. Deliveries will be made anytime between 8am and 6pm. Due to high order and enquiry volumes currently, we are not able to provide ETAs for deliveries.

All delivery charges will be clearly shown in the basket once you have entered your postcode and selected your delivery options, before proceeding to checkout.

Standard delivery to the majority of UK mainland postcodes is inclusive on orders of £50 or more and included in the listed prices*. On orders under £50 delivery is charged at £4.99.

Full details of our Delivery Services & Charges can be found here.

*Supplementary delivery charges apply to a small number of UK postcodes that are further afield for which our carrier charges us more to deliver.

Product Images - Beds & Borders topsoil spaded out of barrow

Improving your soil

Why does soil health matter and how can soil structure impact plant health? Find out more in our guides and learn how to improve your topsoil for successful planting.

Read More »
Product Images - selecting the right topsoil

Choosing topsoil

Guides on how to choose a suitable topsoil for healthy plants, types of topsoil available, information on the British Standard and calculating how much you require for a project.

Read More »

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Rolawn Compost Soil Improver is a natural, peat-free soil conditioner/improver made from composted organic matter. It is highly fertile and will improve the structure of clay, sandy or chalky soils by increasing the organic matter content. Improving the soil’s structure will enhance its drainage characteristics and air and water holding capabilities, all of which will result in healthier plant growth.

Bag Size: approx. 0.5m³ (500 litres) when packed
Coverage: Up to 10m² at a depth of 50mm

  • Improves soil fertility.
  • Improves moisture and nutrient retention in sandy and chalky soils.
  • Helps break up clay soils, improving drainage and workability.
  • Friable and light, easy to barrow, spread and work in to the soil.
  • Peat free.
  • Minimal stone content.
  • Dark brown appearance.
  • Can be used as a multi-purpose compost for containers and potting on.
  • Not suitable for use as seed sowing compost.
  • Produced in accordance with BSI PAS100:2018.
  • Weight to volume ratio (bulk density) is typically around 350kg to 570kg per 0.5m3 bag.
  • Convenient bulk bags minimise waste and mess and are easy to store.
  • Apply anytime, but care must be taken to avoid digging/forking wet soil, as it may damage the soil structure.
  • Can also be applied as a mulch.

Typical application rates for improving topsoils with low levels of organic matter:

  • Heavy clay soil – a layer, 75mm deep, should be incorporated to a depth of 200mm
  • Chalky soil – a layer, 50mm deep, should be incorporated to a depth of 200mm
  • Light sandy soil – a layer, 30mm deep, should be incorporated to a depth of 200mm

Each bag covers:

  • up to 6.7m² at a depth of 75mm
  • up to 10m² at a depth of 50mm
  • up to 16.7m² at a depth of 30mm

Ordering FAQs

Our full range of Rolawn products is available to purchase directly from us through this website, with delivery available throughout the UK mainland.

We also have a nationwide network of stockists, including garden centres, builder’s merchants and specialist turf and topsoil suppliers. You can use our Stockist Locator to find your nearest branch.

If you provide a valid email address during checkout you will receive a confirmation email containing full details of your order; this is also your VAT invoice.

You will find our VAT registration number and company details in the footer of the email.


Yes, unless stated otherwise, all prices quoted on our website include VAT at the current rate.

Once you have entered your postcode and selected any delivery options the total cost including VAT and delivery will be shown in the basket before you proceed to our secure checkout.

Please note, lawn seed is zero-rated for VAT.

For turf and bulk bags you can choose a convenient delivery date in our secure checkout.

Please note the delivery date selected in the basket does not apply to products which are delivered by courier. If you have provided a valid email address or mobile number you will receive a notification from the courier of the intended delivery date with options to select a more convenient date if necessary.

You can find full details of our returns and refunds policy here.

If you would like to cancel your order, please get in touch as soon as possible and we will endeavour to fulfil your request.

If your order has not been despatched, we will cancel the order and you will be refunded in full.

If your order has already been despatched, we will request the product is returned to us or it can be refused at point of delivery. The cost of returning the goods to Rolawn will be deducted from any refund due.

Please note, depending on the product, orders can be despatched up to 4 working days before delivery, or earlier if delivery is to a postcode where extended lead times are required.

Please see our Terms & Conditions for full details of our Cancellation and Refund Policy, including exceptions for the return/cancellation of Turf.

No, we do not currently offer any small bags.


Delivery FAQs

Rolawn can offer free next-day delivery to EH postcode areas when orders are placed before 10am Monday – Thursday. Alternatively, you can choose to collect your products in person from either the Edinburgh or Livingston depot. Call us on 01904 757372 to enquire today. However, we do deliver to the majority of mainland addresses in Scotland. Any applicable surcharges for deliveries in remote areas will be shown in checkout and are detailed within our Delivery Policy.’

Delivery is available to UK mainland addresses only.

Saturday delivery is currently unavailable.

Timed delivery slots are currently unavailable.

Standard delivery of turf and bulk bags is usually within 3 to 4 working days. The next available delivery dates are shown in checkout after entering your postcode.

When you order before 3pm, Monday to Friday, delivery can be made in two working days by selecting Express Delivery in the basket, for which an additional charge applies.  When you order after 3pm on Thursday the earliest day for delivery is Tuesday.

Extended lead times apply to the following areas: AB, DD, IV, KW, PA20+, PH6-11 & PH15+.

Please note turf can only be delivered Tuesday to Friday.

Lawn care items, Lawn Seed and Groright (excluding Lawn Topdressing) are delivered by courier and will be delivered separately to turf and/or bulk bags, therefore selected delivery dates may not apply to these products.

Turf and bulk bags

Deliveries will usually be made anytime from 8am up until 6pm on your chosen delivery day.

If your order has not arrived within 24 hours of the agreed date, please contact us.

Products delivered by courier

For lawn seed & fertiliser deliveries by courier, DPD Local will send you a notification with an estimated delivery slot, providing we have a valid mobile number or email address on the order.

For further delivery information and details of supplementary charges please see our Delivery Policy.

It is best if you are in to accept the delivery. We will attempt to deliver if you are not present and the driver will determine the most appropriate positioning for your goods. With unattended deliveries, Rolawn cannot accept any liability for theft, product deterioration or consequences arising from the positioning of your delivery.

Deliveries of lawn fertiliser and lawn seed are made by DPD Local courier. If you are not available to take delivery the courier will leave a card at the delivery address confirming that they have tried to deliver. Follow the instructions on the card to rearrange delivery. You will also receive an email, text or notification via the DPD app giving you the option to rearrange your delivery with the courier or arrange for it to be left somewhere safe.


Kerbside delivery means that the delivery will be placed as close to your property as possible, as deemed safe by the driver. In most cases, this will be on the pavement outside your property.

To avoid damage to your property by heavy vehicles, delivery of turf, topsoil, bark, soil improver and topdressing can be made to kerbside only. This means we undertake to place the goods as close to your property as deemed safe by the driver.

For further information regarding our method of delivery, please see our Delivery Policy.


The delivery method and type of off-loading depends upon your delivery postcode.

Turf and bulk bags are generally delivered on pallets and off-loaded using a tail lift and positioned using a manual pallet truck. Manual pallet trucks can only operate on a flat, level, concreted, or similar firm surface. They cannot operate on slopes, gravel, earth, grass or any other type of non-solid surface.

Within the M25 and some surrounding areas, pallets of turf/bulk bags will usually be off-loaded using a vehicle mounted hydraulic crane (‘hiab’) which lowers the pallet/bulk bag to ground level. Bulk bags will not be delivered on pallets when delivered via ‘hiab’.

For further delivery information please see our Delivery Policy.

If you have any concerns about delivery, please contact us as other options may be available.

Delivery is to kerbside only. Turf and bulk bags will usually be offloaded using a tail-lift and pallet truck and therefore cannot be lifted over a hedge or fence. Please read our Delivery Policy for more information.

No, delivery is to kerbside only. Further information can be found in our Delivery Policy.

Our bulk bags and pallets are ‘non-returnable’. Please dispose of them responsibly.

Once you have placed your order we will send an email confirming your purchase and delivery details. If the email does not reach you, please check your junk or spam folder; if it hasn’t arrived please contact us.

If you have ordered lawn seed or fertiliser you will receive notifications about delivery from the courier, DPD Local, via email, text message or the DPD mobile phone app.

If you have ordered turf or bulk bags you will not receive any further communication unless you have specifically requested this in the delivery notes section. Unfortunately we cannot guarantee a call ahead from the delivery driver, as it is not always possible for the driver to stop to make a call.

For deliveries of lawn seed and fertiliser which are sent by courier, you will receive notifications via email, text message or the DPD app to enable you to track delivery of your order, if you have supplied us with a valid email address or mobile number.

For deliveries of turf or bulk bags, tracking isn’t currently available with the third party carriers we use. Deliveries will be made anytime between 8am and 6pm. Due to high order and enquiry volumes currently, we are not able to provide ETAs for deliveries.

All delivery charges will be clearly shown in the basket once you have entered your postcode and selected your delivery options, before proceeding to checkout.

Standard delivery to the majority of UK mainland postcodes is inclusive on orders of £50 or more and included in the listed prices*. On orders under £50 delivery is charged at £4.99.

Full details of our Delivery Services & Charges can be found here.

*Supplementary delivery charges apply to a small number of UK postcodes that are further afield for which our carrier charges us more to deliver.

Product Images - Beds & Borders topsoil spaded out of barrow

Improving your soil

Why does soil health matter and how can soil structure impact plant health? Find out more in our guides and learn how to improve your topsoil for successful planting.

Read More »
Product Images - selecting the right topsoil

Choosing topsoil

Guides on how to choose a suitable topsoil for healthy plants, types of topsoil available, information on the British Standard and calculating how much you require for a project.

Read More »

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