Soil Conditioner

£50.00 exc VAT

If you’re searching for an organic, sustainable way to improve the health and vitality of your plants, then look no further than Alsoils’ 0.75m³ bulk bag of soil conditioner! It’s an excellent source of organic matter that helps to create a healthy soil ecosystem, increasing microbial activity and providing a habitat for beneficial bacteria and fungi.

Our Soil Conditioner is made from naturally composted matter and is peat-free. Blended from organic matter, our soil improver is sustainable and is great for a range of gardening needs.

In stock

SKU: 40 Category: Tags: ,


Alsoils+ Soil Conditioner is perfect for enhancing existing topsoil and adds slow-releasing nutrients to your garden. Our soil conditioner improves root growth and microbial activity, resistance to diseases, increases water retention and reduces soil temperatures.

With our soil conditioner, you can achieve healthier plants, better yields, and a more sustainable garden – invest in your soil’s health, and watch your garden thrive! All of our bulk bags are filled to the brim, so you can be sure that you get the best value for money and a high-quality product.

Suitable for: Mixing into topsoil, growing vegetables and general gardening

Bag size: 0.75m³

Available in: Portsmouth, Southampton, Winchester, Chichester, Waterlooville and other towns and villages within Hampshire and West Sussex


Soil Conditioner FAQs

What is soil conditioner used for?

Soil conditioners can help improve soil structure by increasing aeration, water retention, and nutrients which all contribute to helping microorganisms thrive and for plant roots to grow.

What is the difference between soil conditioner and compost?

The difference between soil conditioner and compost is in the structure. You can grow plants and vegetables in compost but a good soil conditioner has to open a structure and roots would struggle to grasp it if it was the only substance to the bedding.

How long does it take for soil conditioner to work?

It can depend on what time of the year you apply soil conditioner, but you can expect to see a difference within a couple of weeks.

When should I add soil conditioner?

Add your solid conditioner before planting time by mixing it well into the soil to improve the soil structure within the rootzone. This ensures that essential nutrients are available to the plants as they grow, setting a strong foundation for healthy and robust plant development.

Do I need to water the soil after applying a soil conditioner?

Yes, water the soil after applying a soil conditioner. Once the soil conditioner is incorporated into the topsoil, watering it thoroughly is essential. This activates the soil conditioner and guarantees its even distribution within the soil.

As a result, the soil structure is enhanced, creating an optimal environment for robust plant growth. Learn how to effectively use soil conditioner here.

Can I mix a soil conditioner with other soil amendments?

Yes, mixing a soil conditioner with other soil amendments offers advantages for soil enrichment. However, striking a balance is crucial, as excessive quantities of soil conditioner can harm plant health.

An effective approach to blending soil amendments involves combining one part composted manure, three parts garden compost, and one part soil conditioner. This mixture can be thoroughly incorporated into the soil through tilling before the planting process begins.

Is a soil conditioner safe for plants, pets, and the environment?

Yes, soil conditioner is safe for plants, pets and the environment when used as directed. Soil conditioners are designed to improve soil quality and enhance plant growth without posing significant risks to plants or animals. However, we recommend carefully following our instructions for usage and taking appropriate precautions during application.

Can I use a soil conditioner in any type of soil?

A solid conditioner can be used for any type of soil and offers numerous benefits to both clay and compact soils by enhancing aeration and drainage, while also aiding moisture retention in light and sandy soils. 

The versatility of our soil conditioners allows them to address issues of poor soil structure and maintain overall soil quality, making them suitable for a wide range of soil compositions and conditions.

Soil Conditioner Volume Calculator

Delivery Information

Our Soil Conditioner bulk bag deliveries are typically made via a vehicle with a crane offload.

Deliveries will be between 2/5 working days from ordering – unfortunately we are unable to specify a specific time although if you call us, we can usually let you know what day and a rough time to expect your delivery, however due to the nature of our business this cannot be guaranteed and can change at short notice.

Being a local, family-run business we only have the capabilities to deliver topsoil, manure, mulch and other products to areas near our HQ in Hambledon, Hampshire (see our delivery zones page for more information). Please note, we are currently unable to deliver bulk bags of Soil Conditioner within the Portsmouth Clean Air Zone.


Based on 14 reviews
Mark Belshaw
Mark Belshaw
Ordered 2 bulk bags of manure on Wednesday, late afternoon and all was delivered by Friday lunch time. Great quality product and excellent delivery turnaround.
Charles Smith
Charles Smith
Excellent, from order to delivery. 10 tonnes of loose load top soil delivered within a few days. Best price and the 10mm screened soil is great quality. Thank you
Lesley Barry
Lesley Barry
Excellent product ordered 4 bags of top soil the driver was so accommodating as we have a very long driveway. The customer sevice was excellent. Thank you.
David Robberts
David Robberts
Excellent product at a sensible price from a local supplier. Staff are friendly and willing to help: I asked if just one bag of topsoil could be delivered quickly and it arrived next day! Great service.
Mark Hibberd
Mark Hibberd
Smooth execution of the transaction and delivery. Very helpful phone call and conversation. Ordered three bags of Border Blend topsoil. Paid by Paypal. They delivered, on the specified date, carefully, exactly where I wanted the bags placed. All in all, a very pleasing purchase. The topsoil was excellent and had been very carefully prepared. No lumps. Would definitely recommend and I will use again. Everyone I spoke to was nice and helpful.
David Stamp
David Stamp
Ordered topsoil on Tuesday came by Friday at the exact time quoted. Was WAY cheaper than anywhere else (by about £15 per bag) and was dropped off via a crane on back of the lorry, not by pallet which most of the other places use. Soil was fine and dry. Brilliant !