Soil Improvers

Give your garden the best start with our range of soil improvers, designed to improve soil structure, boost fertility and help retain moisture. Whether you're preparing beds and borders, planting vegetables or refreshing tired soil, find everything you need for healthier soil and stronger plants.

 

With over 75 years of gardening expertise, Marshalls Garden makes it easy to buy soil improver online, with convenient delivery direct to your door.

17 Products

How do I know my soil needs an improver?


There will be obvious signs, such as:

  • Plant growth is stunted, often leading to yellowing leaves
  • Poor drainage and is often waterlogged
  • It's too dry
  • Too compact - it'll feel hard to dig into

Need some advice on which improver to get? Call our team.

FAQs about soil improvements

What is a soil improver made of?

Soil improver gets its nutrients from things such as compost, manure and peat moss. There are organic and inorganic options available:

Inorganic

Limestone, rock dust, gypsum, glauconite and polysaccharides.

Organic soil improver

Tree bark, woodland soil, sawdust, seaweed,
molasses, horse/cow manure, and wormcasts.

Soil improver versus fertiliser

Soil improver and fertiliser do play a similar role, so it's easy to see why they can be confused. Fertiliser provides nutrients to the soil, yet it doesn't address its build-up or quality. Soil improver tackles the soil's structure, including air and water pockets and firmness, which allows plants to make the best use of the nutrients supplied by fertilisers.

When should I use a soil improver?

Soil improver can be used all year round, but using it in
the spring will generate the best results. In terms of scenarios, it can also be used:

  • When planting new beds.
  • When mulching.

Can I use soil improver and fertiliser together?

Yes! It's a great way to ensure that you have covered all bases. Soil improver will help make the structure of your soil conducive to enjoying the growing benefits of fertilisers. We do recommend starting with small quantities, though, and monitoring how your garden responds.

Have another question? Contact us here.

Why choose Marshalls Garden?

  • Personal service: Sometimes you just need to speak to a real person, and with us, you can! Our team of gardening gurus is available to assist you with queries, orders, or anything else you may need.
  • Varied range: At Marshalls Garden, you can find different product types, sizes, brands and materials.
    You can use our growing guides to make the most of your soil improvers to boost all kinds of plants.
  • "Great" rating on Trustpilot: Thousands of our customers have taken the time to share their experience with us on Trustpilot. Our customer service, excellent quality and quick delivery are what they love the most.

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