Ever wondered..
What’s in the bag?
Walk into any garden centre and you’ll see stacks of Multipurpose Compost (MPC). It promises to suit every plant and purpose — but does it really? Why do they look different, and do they really perform differently?
If you have ever wondered this, then you are not alone!
At MultipurposeCompost.co.uk, we dig a bit deeper. This site was born out of years of trial, error, and curiosity. We help you understand what’s actually in the bag, how it performs, and when to use (or avoid) it.
The goal? Grow better plants, waste less, and buy with confidence!
What we do.
Product reviews!
Buying & Brand Insights
Real comparisons, no marketing fluff. Our reviews combine hands-on trials, brand overviews, and supplier notes so you can choose wisely — and avoid wasting money!
How to?
Practical Guides
Clear, step-by-step guides for real-world use cases: filling pots and containers, refreshing tired compost, improving soil, or fixing soggy beds.
FAQs.
Top 50 Compost Questions Answered
Ever wondered why seedlings struggle in MPC, or if peat-free really means better? Our FAQs give you straight answers backed by science and field experience — plus a few surprises.
What’s in the Bag?
The Science of Compost
If you want to go deeper, this is where you’ll find the real detail:
– The core components and base materials that shape texture and water balance
– Additives like fertilisers, fibres, and wetting agents
– Physical properties such as drainage and structure
– Biological activity and microbial life — you might be surprised what’s living (or missing) in there!
This site grew from years of compost testing and innovation — not sponsorship deals. Tony Callaghan, creator of HotBin Composting and SoilFixer, has spent over 15 years studying how compost, humus, and biochar work in real soils. Here, he shares that knowledge in plain English so you can make sense of what’s really in those bags.
This site grew from years of compost testing and innovation — not sponsorship deals. Tony Callaghan, creator of HotBin Composting and SoilFixer, has spent over 15 years studying how compost, humus, and biochar work in real soils. Here, he shares that knowledge in plain English so you can make sense of what’s really in those bags!
Stay connected!
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Just genuinely useful updates on compost, soil, and better growing.
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– Fresh “How To” tutorials and practical guides
– Brand and sustainability updates
– Insights into compost science and soil health