Mr Watmore's 4 in 1 Blend Potting Mix

Four Ingredients. One Perfect Mix. Beautiful Gardens Start From the Roots Up.

Give every plant the best possible foundation with Mr Watmore’s 4 in 1 Potting Mix — a premium, finely blended compost crafted from four carefully chosen organic ingredients for outstanding results across every planting application.

Blended from organic-rich black compost, spent mushroom compost, peat substrate and horticultural silica sand, screened to below 10mm and certified to BS standard. Processed in our purpose-built indoor dry facility for a consistently premium, clean product all year round. Available in an 850 litre £141  or 1400 litre bulk bag £192 delivered to all England and Wales postcodes in 2–5 working days by pallet network.  Next Day Charges Apply 12 noon cut off Monday - Thursday.

The Benefits

• 4-in-1 premium blend — black compost, mushroom compost, peat substrate and silica sand working together to create the ideal growing environment for any plant
• Improves soil structure — the fine, open texture allows roots to establish quickly and explore freely, giving plants the strongest possible start
• Slow-release natural fertiliser — multiple sources of organic matter break down gradually throughout the growing season, feeding plants with a steady supply of essential nutrients
• Retains moisture & drains freely — the silica sand ensures excellent drainage while the compost fraction holds moisture and releases it as plants need it
• Promotes healthy foliage & flowering — the rich organic blend encourages lush green growth and increased flower production season after season
• Reduces soil erosion — the blend of organic matter slows soil breakdown, keeping your beds and borders productive for longer
• 100% clean & certified — certified to BS standard, safe for all planting applications including young plants and seeds
• Indoor dry operation — produced in our purpose-built facility for a consistent, high-quality product every time

How to Use

• Potting & repotting — fill pots, tubs and containers with 4 in 1 Mix as a ready-to-use potting compost for young plants, seedlings and maturing plants
• Raised beds & borders — use as a premium planting medium when creating new raised beds or refreshing existing borders for trees, hedges and shrubs
• Planting holes — blend with native soil in planting holes to give new plants a nutrient-rich, well-structured start that encourages rapid root establishment
• Vegetable & seed growing — the fine, clean texture makes it ideal for sowing seeds and growing vegetables in beds, raised beds and containers
• Annual soil refresh — we recommend topping up borders every other year with our Mushroom Compost or Rich Black Compost as a mulch to keep soil packed full of goodness for healthy annual growth

Delivery — England & Wales

We deliver to all England and Wales postcodes in 2–5 working days by pallet network, straight to your door. Bulk loose loads of 60–80 cubic metres are also available for larger projects with forklift or crane offload.

Bulk Orders Welcome

We offer discounts on bulk orders. Call us on 01928 610 013 or use our live chat for a quote.