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Does your garden soil need a boost? Sow green manure in your garden and you’ll reap the benefits.

Just the other day, I discovered a partially finished bottle of an energy drink placed 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 a bit of a mess. Sometimes neglect has its perks; coming back from a trip, I spotted a sunflower sprouting in the back corner.

Now, however, some necessary firefighting is underway. Being six months pregnant, I’ve hired a professional gardener to tackle troublesome weeds like green alkanet and robinia saplings from the neighbour’s tree, but keeping desirable plants. Next, in the open patches, I’ll be sowing cover crops.

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

My gardening friend Claire has written about 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 foraged apples and some woody herbs.

My garden goals are modest and consistent – and improving the soil is my main priority. For those wondering, the scaffolding is for roof repairs, and the garden boundaries are still wobbly, but the neighbours are on board with the plan.

Green manure work wonders for soil health. Bare soil invites weeds, which is why weeds appear. But by sowing vigorous crops, you can control weeds, attract pollinators, host pest-eating creatures, and fix nitrogen.

Green manure plants aren’t always showy – though some, like certain lupin varieties and bird’s foot trefoil, have lovely blooms – but their purpose is to grow vigorously rather than look decorative. Once established, you can turn them under, cut them for compost, or let them decompose for worms to incorporate. The real magic happens underground.

Autumn is perfect for sowing these cold-season plants. I’ve chosen forage rye, which breaks up heavy earth, Italian ryegrass, a weed-suppressor, and beans that aerate soil.

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

The writer

Mark Park

Maya Chen is an agricultural scientist and writer with over a decade of experience in sustainable farming and rural development.

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