Improve growing conditions by understanding the soil and compost you use. Browse home-composting systems, leaf mould, mulch, soil testing and soil improvement, alongside peat-free mixes, potting ingredients and refreshing container compost. The guides explain how to choose, make, store and use these materials.
Horticultural grit is a staple for alpine and rock gardens, but it is not a universal soil fix. This guide explains where grit genuinely improves drainage and plant health, and where it adds little value or may even work against your plants.
Bark mulch and compost mulch serve different purposes. Bark is long-lasting and low-nutrient, ideal for established shrubs; compost feeds the soil and suits vegetables, new plantings and herbaceous borders. Learn how to match each material to your bed.
Mulch only helps when applied at the right depth and kept away from stems. This guide explains the RHS-recommended 5–7.5cm biodegradable layer, the 10cm stem-free collar, and how to avoid burying low-growing plants or woody stems.
Sieving compost separates it into grades with different uses. Fine material suits seed sowing and potting mixes, while coarser material works as a mulch or soil improver. This guide explains how to sieve effectively and match each grade to the right garden task.
Ericaceous compost is a specialist growing medium for acid-loving plants such as rhododendrons, camellias, heathers and blueberries. It provides the low pH these plants need to absorb nutrients, especially when garden soil is alkaline. Use it in containers, not as a soil amendment.
Sandy soil drains quickly and loses nutrients, but regular additions of organic matter can bind the sand into moisture-holding crumbs. This guide explains how to dig in soil improver and apply mulch to retain water.
