Author: Tony Callaghan

Indoor plant advice often includes warnings about tap water. You may see claims that chlorine harms plants, that cold water shocks roots, that rainwater is always better, or that salt and mineral build-up in pots makes tap water harmful. In reality these factors are usually minor compared with the real causes of plant problems. Most…

Short answer: Mushroom compost is the spent growing substrate left after commercial mushrooms have been harvested. It starts as composted straw and gypsum (sometimes with a small amount of manure) that’s pasteurised before mushrooms are grown — not afterwards. When sold, it’s no longer rich in nutrients but can still improve soil texture and moisture…

Short answer: No. Manure is animal waste mixed with bedding such as straw or sawdust. Compost is organic matter that has been fully decomposed. Both improve soil, but manure must be composted before use. What manure actually is Fresh manure is rich in nitrogen and microbes. When mixed with bedding, it becomes an excellent raw…

Online compost ratings can swing from rave to rage. Here’s why the stars don’t always tell the full story. 1) Different expectations, different uses One gardener uses Multipurpose Compost for seedlings, another fills containers or raised beds. Each expects different things: When those expectations clash, the same bag can earn both 1★ and 5★. 2)…

We don’t hand out stars at random. Every compost on MultipurposeCompost.co.uk is rated using our MPC Balanced Scorecard v9 — a transparent, evidence-based way to compare composts on Ease of Use, Composition, and Sustainability. Each brand is observed and compared against measurable indicators gardeners actually notice, like how easy it is to re-wet, how consistent…

Short answer:Bagged Multipurpose Compost doesn’t expire like food — but it does degrade over time. Most manufacturers recommend using unopened bags within 12–18 months of packing, and opened bags within 6 months. What actually happens as compost ages These changes won’t make compost unsafe, but they reduce germination, drainage, and nutrient release — all key…

It’s one of the most common gardener frustrations: two bags labelled “Multipurpose Compost” can behave completely differently. One drains perfectly; another stays soggy and lifeless. The reason lies in what “multipurpose” really means — and what it doesn’t. 1) “Multipurpose” is not a strict standard Unlike PAS100 (for recycled green compost) or Soil Association certification…