Mr Watmore's no.1 Soil Improver Mushroom Compost®

The UK's Favourite Soil Improver — Premium Aged Mushroom Compost

Transform your soil from the ground up with Mr Watmore’s No.1 Mushroom Compost — a premium quality, aged growing medium that works wonders on every soil type. Whether you’re battling heavy clay, improving sandy soil, or simply want to give your plants the best possible start, this is th85e soil improver that delivers real, lasting results.

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A rich blend of manure, wheat straw and gypsum, processed and packaged direct to your home a premium product all year round. Available in a 950 litre or 1400 litre bulk bag .

Delivery — Northwest Postcodes.

Delivered to the following postcodes by pallet network, straight to your door. Simply select your postcode area and bag size at checkout — pricing is calculated automatically based on your location. Delivery Postcodes CH, CW, L, M,  SK, WA, WN, LL11-14.

• Next Day Delivery available — order before 12 noon Monday–Thursday for next working day delivery
• Select a delivery day at checkout to suit you
• Bulk loose loads of 60–80 cubic metres also available for large projects — call us for a quote

Did you know? Mushroom compost isn’t made from composted mushrooms — it’s the nutrient-rich growing medium in which mushrooms are cultivated, packed with organic goodness ready to feed your garden.

The Benefits of Mushroom Compost

• Improves soil structure — breaks up heavy clay and loosens compacted soils, creating a crumbly, workable texture that lets water, air and nutrients move freely
• Boosts nutrient content — naturally enriches soil with nitrogen, phosphorus, potassium, copper, iron, zinc and manganese for healthier, more vigorous plant growth
• Retains moisture efficiently — absorbs water and releases it slowly as plants need it, reducing watering frequency and helping plants through dry spells
• Feeds beneficial soil life — naturally boosts bacteria, fungi and microorganisms in the soil, creating a living, thriving growing environment
• Helps sandy soils hold moisture — and helps heavy soils drain better, making it the perfect all-rounder for any soil type
• Keeps plants healthy & resilient — fertile soil means happier plants with fewer pest and disease problems, reducing the need for chemicals
• pH 6.0–7 — a near-neutral pH that suits the vast majority of garden plants, shrubs, hedges and vegetables

How to Use

Spread around planting holes when planting, work into existing borders as a soil conditioner, or use as a mulch over beds, lawns and allotments. For best results, blend with your native soil when planting hedges, shrubs and trees to give roots the richest possible growing environment from day one.

Bulk Orders Welcome

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