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Want to give your soil some TLC? Sow green manure in your garden and you’ll enrich your soil.

Just the other day, I discovered a half-empty bottle of Lucozade left behind in the euphorbia trough by one of the scaffolders. An architect friend joked, “Are you sure that’s Lucozade?” which made me see it differently.

All this is to say, the garden is in disarray. But there’s a lot to be said for negligence; coming back from a trip, I spotted a sunflower sprouting in the back corner.

This week, though, some urgent tidying is underway. Being six months pregnant, I’ve enlisted a local gardener to tackle troublesome weeds like green alkanet and robinia saplings from the neighbour’s tree, while leaving the good stuff. Next, in the newly cleared patches, I’ll be sowing green manure.

Green manure are superheroes when it comes to improving soil health.

My gardening friend Claire has previously discussed green manure, as they are essential in crop rotation for vegetable plots. But, the only things I’m picking from my garden right now are a few foraged apples and some hardy herbs.

My garden goals are modest and consistent – and improving the soil is top of the list. For those wondering, the scaffolding is for roof repairs, and the garden boundaries are still wobbly, but the neighbours agree with the plan.

Green manure are like superheroes for soil health. Soil likes to be covered, which is why unwanted plants pop up. Yet by sowing fast-growing plants, you can suppress weeds, bring in bees, shelter beneficial insects, and fix nitrogen.

Cover crops may not look exciting – though some, like certain lupin varieties and a flowering legume, have lovely blooms – but their role is to grow vigorously rather than be admired. After they’ve grown, you can turn them under, chop them for mulch, or leave them on the surface for worms to pull down. The real magic happens below the surface.

Autumn is perfect for sowing these cold-season plants. My selection includes forage rye, great for clay soil, a nitrogen-lifter, vetch, and field beans.

It feels rewarding in sowing something that won’t stay forever – at least above ground.

The writer

Adam Knight

A tech journalist and AI researcher passionate about demystifying complex innovations for a broader audience.

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