Does your garden soil need a boost? Plant cover crops in your garden and you’ll reap the benefits.

I recently found a partially finished bottle of Lucozade placed in the euphorbia trough by one of the scaffolders. A visiting architect commented, “Are you sure that’s Lucozade?” giving me a new perspective.

In short, 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.

Now, however, some urgent tidying is underway. Being six months pregnant, I’ve hired a local gardener to remove invasive plants like green alkanet and young tree shoots from the neighbour’s tree, while leaving the good stuff. Next, in the newly cleared patches, I’ll be sowing green manure.

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

A fellow garden writer has written about green manure, 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 hardy herbs.

My garden goals are modest and consistent – and enhancing soil health is my main priority. To update concerned readers, the scaffold is for roof repairs, and the garden boundaries are still wobbly, but the neighbours are on board with replacing them.

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

Green manure plants may not look exciting – though some, like certain lupin varieties and bird’s foot trefoil, have pretty flowers – but their purpose is to grow vigorously rather than be admired. After they’ve grown, you can dig them into the soil, cut them for compost, or leave them on the surface for earthworms to pull down. Their work happens below the surface.

Autumn is perfect for sowing these overwintering crops. I’ve chosen forage rye, great for clay soil, a nitrogen-lifter, a weed-suppressor, and beans that aerate soil.

It feels rewarding in planting seeds knowing it’s temporary – on the surface, anyway.

Daniel Watkins
Daniel Watkins

Dr. Helena Voss is an astrophysicist and science communicator who translates complex cosmic phenomena into accessible stories.