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Want to give your soil some TLC? Plant green manure in your garden and you’ll improve your yields.

Just the other day, I discovered a half-empty bottle of Lucozade left behind in the euphorbia trough by one of the scaffolders. A visiting architect commented, “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 growing in the back corner.

This week, though, some urgent tidying is underway. Being six months pregnant, I’ve enlisted a local gardener to remove invasive plants like green alkanet and robinia saplings from the neighbour’s tree, while leaving the good stuff. Then, in the open patches, I’ll be sowing green manure.

Green manure are superheroes when it comes to boosting soil quality.

A fellow garden writer has previously discussed cover crops, as they play a key role in crop rotation for vegetable plots. But, the only things I’m harvesting from my garden right now are a few scrumped apples and some woody herbs.

My ambitions for the garden are modest and consistent – and enhancing soil health is top of the list. For those wondering, the scaffolding is for roof repairs, and the garden boundaries are still wobbly, but the neighbours are on board with replacing them.

Cover crops work wonders for soil health. Soil likes to be covered, which is why weeds appear. But by sowing fast-growing plants, you can suppress weeds, attract pollinators, shelter beneficial insects, and enrich the soil with nutrients.

Green manure plants may not look exciting – though some, like certain lupin varieties and bird’s foot trefoil, have pretty flowers – 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 let them decompose for worms 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, Italian ryegrass, a weed-suppressor, and field beans.

There’s satisfaction in sowing something that won’t stay forever – on the surface, anyway.

NG
The writer

Natalie Gallagher

Astrophysics graduate and amateur astronomer sharing celestial wonders and practical stargazing advice.

Astro Collective

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