Redwood Chip® is a decorative mulch that works particularly well in formal gardens, highlighting feature plants, hedges and structural lines. Mulching reduces evaporation, keeping plant roots cool in summer and warm in winter. Mulching will also suppress weed growth, and encourage earthworm activity. Redwood Chip™ is a 20-25mm graded mulch and made from recycled plantation timber & wood waste. The red colour is non-toxic, making it safe to use around people, pets and plants. Tip: before mulching add some fertiliser and water in well. Every few months lightly rake over the mulch to brighten up the colour. All mulches should not be unloaded directly onto driveways or other surfaces without a tarp or similar. Mulches can leak colour, tannins or other substances that may stain surfaces like concrete. One bag covers approximately 1sq metre at 50mm thick.