We Deliver Landscaping Supplies in Repton

Treated timber sleepers are generally safe for gardens if they are treated with modern, eco-friendly preservatives. Historically, older sleepers treated with CCA (copper chrome arsenate) raised concerns for vegetable gardens due to arsenic leaching. Today, safer alternatives like ACQ (alkaline copper quaternary) and LOSP (light organic solvent preservatives) are commonly used. For extra peace of mind when building vegetable beds, you can line timber sleepers with plastic sheeting or use untreated hardwood varieties. Always check the treatment type before purchase, especially if the sleepers will be in direct contact with edible plants.

For most garden beds, applying mulch at a depth of around 75mm is ideal. This thickness is enough to suppress weeds effectively, retain moisture, and regulate soil temperature without suffocating plant roots. If mulch is applied too thinly, it won’t effectively block weeds or retain moisture; too thick, and it can inhibit air flow to the soil. Around tree trunks and shrub bases, it's best to pull mulch a few centimetres away from the stem to prevent rot and pest problems. Replenish the mulch yearly or as it decomposes and thins out.

For French drains, coarse gravel sized between 20mm and 40mm is typically the best choice. Larger stones create wide air gaps, allowing water to flow quickly away from the problem area. The gravel should be angular rather than rounded, as angular stones lock together better, maintaining the structure of the drain and preventing collapse. A perforated pipe wrapped in geotextile fabric is often used in the centre, surrounded by gravel, to channel water away efficiently. Avoid fine gravel or sand, as these can clog the drain over time.

Yes, blending different types of soil can greatly improve overall texture, drainage, and nutrient levels. For example, if your existing soil is heavy clay, mixing in coarse sand and compost will improve aeration and drainage. Sandy soils, which drain too quickly and lack nutrients, benefit from mixing in organic compost and loam. The goal is to create a loamy, crumbly soil structure ideal for most plants. Before mixing, assess your soil's current composition with a simple jar test, and adjust your amendments accordingly. Always mix thoroughly to avoid patchy layers within the bed.