The 6 UK Soil Types — And What Grows Best in Each

Whether a plant thrives or dies is down to a number of factors. Variables include weather conditions, a plant’s position in the plot, care routines – and the prevalent type of soil.

The latter is often – and easily – overlooked, but it’s one of the most important factors to consider as soil determines what nutrients are available and how well water drains and oxygen flows.

Plants that thrive in sandy, well-draining soils, for example, tend to struggle in damp clay soil, which retains a lot of moisture. This is why knowing what soil fills your garden – as well as the best plants to pair it with – pays off.

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“Many gardeners don’t realise they may be making their lives harder because they’re not matching the plants they’re growing with the type of soil they have in their garden,” says Chris Bonnett, the founder of online plant retailer GardeningExpress.co.uk.

“Plants that are grown in the right soil conditions are much more likely to establish well, stay healthy and produce better flowers or crops, with much less maintenance required.”

Chris adds that soil type can be improved over time, but gardeners fare much better by selecting naturally compatible plants for their soil type from the get-go. With that in mind, here’s a breakdown of the six soil types and which cultivars go best with them.

Clay soil

Clay soils are made up of over 25% clay and hold a high proportion of nutrients and water, which makes them great for plants that require a lot of moisture and have strong root systems. They drain slowly and take longer to warm up in spring than sandy soils, for example.

Best for: Iris, hosta, hydrangea, aster

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Sandy soil

Sandy soils, also known as light soils, have a high proportion of sand and are well-draining. However, they hold on to far less water than clay soils, which makes them prone to drying out quickly. Sandy soils, low in plant nutrients and often acidic, are best paired with drought-tolerant variants, like Mediterranean and silver foliage plants.

Best for: Lavender, rosemary, yucca and buddleia

Silt soil

Silty soil is made up of medium-sized particles, which makes it smooth and well-draining but more moisture-retentive than sandy soils. Silt soils are suitable for plants that enjoy occasional damp conditions.

Best plants: Willows, dogwoods, ferns, hardy geraniums

Loam

Loams are composed of a mixture of clay, sand and silt and offer the best features of sandy and clay soils: they’re well-draining, retain moisture and are rich in nutrients. “Loamy soil is considered the best soil type for most plants,” says Chris.

Best for: Most plants, including vegetables, fruit plants and flowers

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Peat soil

Peaty soil is rich in organic matter and retains a lot of moisture, which makes it very fertile. It provides the perfect foundation for plants that thrive in acidic, moist conditions.

Best for: Blueberries, azalea, rhododendron, Japanese maple, camellia

Chalky soil

Free-draining and naturally alkaline, chalky soil can prove a little inhospitable for many plants as it tends to lock up essential nutrients. Those that thrive in drier conditions, however, are perfectly at home in this lime-rich soil.

Best for: Lavender, thyme, lilac, honeysuckle

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Wanda Sachs is the Daily Writer for House Beautiful and Country Living, exploring the latest in interior design, home trends, property news, wellbeing and sustainable living. With a keen eye for style and a passion for storytelling, she previously served as an Associate Editor at The Berliner in Berlin, where she launched and led the magazine’s monthly style vertical, covering emerging fashion trends. Wanda holds a combined BA in English and German from Goethe University Frankfurt.