You can spend a fortune on compost, seed, and clever gear and still end up with tired raised beds and a mossy lawn if you get the basics wrong at the start. We’re answering two listener questions that keep popping up because they sound simple, but the wrong advice can cost you seasons of progress.

First up, raised beds in a polytunnel or greenhouse. We dig into the big mistake of putting ground cover fabric or plastic membranes under your growing media. I explain why that layer cuts your beds off from native soil life, why that matters for long term soil health, and what to do instead. We keep it practical: cardboard, quality compost, steady moisture, and keeping beds planted or mulched so the soil food web stays alive. If you’ve already lined beds with plastic, we talk through realistic options to reopen access and start rebuilding.

Then we switch to a problem nearly everyone sees after a long wet winter: moss in lawns. We break down the most effective lawn care approach for heavy moss, including scarifying, debris removal, top dressing, and reseeding or overseeding. We also compare slower bacterial treatments, the quick blackening effect of iron sulphate, and why raking is essential. Finally, we touch on how robot mowers can help reduce moss by encouraging thicker grass growth.

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Until next week  
Happy gardening  
John