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Soil in need of some love? Plant green manure in your garden and you’ll improve your yields.

Just the other day, I discovered a half-empty bottle of an energy drink placed in the euphorbia trough by one of the scaffolders. A visiting architect joked, “Are you sure that’s Lucozade?” giving me a new perspective.

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

This week, though, some urgent tidying is underway. As I’m expecting a baby, I’ve hired a professional gardener to tackle troublesome weeds like a prickly weed and young tree shoots from the neighbour’s tree, but keeping desirable plants. Then, in the open patches, I’ll be sowing green manure.

Cover crops act like heroes when it comes to improving soil health.

A fellow garden writer has previously discussed green manure, as they play a key role 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 my main priority. For those wondering, the scaffold is for roof repairs, and the fences are yet to be fixed, but the neighbours are on board with replacing them.

Cover crops are like superheroes for your garden’s foundation. Soil likes to be covered, which is why unwanted plants pop up. But by sowing fast-growing plants, you can suppress weeds, attract pollinators, host pest-eating creatures, and enrich the soil with nutrients.

Cover crops aren’t always showy – though some, like certain lupin varieties and a flowering legume, have lovely blooms – but their purpose is to grow vigorously rather than be admired. Once established, you can turn them under, chop them for mulch, or let them decompose for earthworms to pull down. The real magic happens below the surface.

Autumn is perfect for sowing these overwintering crops. I’ve chosen rye grass, great for clay soil, a nitrogen-lifter, vetch, and field beans.

There’s satisfaction in planting seeds that won’t stay forever – at least above ground.

About the author

Kimberly Smith

Tech journalist and researcher specializing in emerging technologies and their societal impact.

Smart Scope Delft

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