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

I recently found a half-empty bottle of Lucozade left behind in the euphorbia trough by one of the scaffolders. A visiting architect joked, “Are you sure that’s Lucozade?” which made me see it differently.

In short, the garden is a bit of a mess. Sometimes neglect has its perks; after returning from holiday, I spotted a sunflower sprouting in the back corner.

This week, though, some necessary firefighting is underway. As I’m expecting a baby, I’ve enlisted a local gardener to remove invasive plants like green alkanet and robinia saplings from the neighbour’s tree, but keeping desirable plants. Then, in the newly cleared patches, I’ll be sowing cover crops.

Cover crops act like heroes when it comes to boosting soil quality.

A fellow garden writer has written about green manure, as they are essential in seasonal planting for edible gardens. But, the only things I’m picking from my garden right now are a few scrumped apples and some woody herbs.

My ambitions for the garden are modest and consistent – and improving the soil is top of the list. For those wondering, the scaffold is for roof repairs, and the fences are yet to be fixed, but the neighbours agree with replacing them.

Green manure work wonders for soil health. Bare soil invites weeds, which is why unwanted plants pop up. But by sowing vigorous crops, you can control weeds, bring in bees, host pest-eating creatures, and fix nitrogen.

Green manure plants may not look exciting – though some, like lupins ‘Blue Sonet’ and bird’s foot trefoil, have lovely blooms – but their role is to thrive rather than look decorative. After they’ve grown, you can turn them under, chop them for mulch, or leave them on the surface for earthworms to pull down. Their work happens below the surface.

Now is the ideal time for sowing these overwintering crops. My selection includes rye grass, which breaks up heavy earth, a nitrogen-lifter, a weed-suppressor, and field beans.

There’s satisfaction in sowing something knowing it’s temporary – on the surface, anyway.

The writer

Andrea Jackson

A passionate astronomer and science communicator with over a decade of experience in astrophotography.

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