Soil Improvers

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?

Your Trusted Gardening Experts

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We’re not just here to sell gardening products — we’re here to share our knowledge, support your gardening journey and help you grow with confidence.