Growmoor John Innes No.3 Compost is formulated using the classic 50-year-old recipe of loam, peat and horticultural grit — a proven blend trusted by gardeners for mature plant establishment. Ideal for potting on and final potting of larger specimens into containers, this compost delivers a substantial nutrient reserve to support established plants through the growing season. The balanced composition ensures excellent drainage, preventing waterlogged roots whilst maintaining the porosity plants need to respire freely. Perfect for herbaceous perennials, shrubs, and specimen plants requiring a stable, nutrient-rich medium. The 35L bag provides ample coverage for multiple plantings or larger container projects.