Does your garden soil need a boost? Sow cover crops 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 commented, “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. But there’s a lot to be said for negligence; coming back from a trip, 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 hired a professional gardener to tackle troublesome weeds like green alkanet and robinia saplings from the neighbour’s tree, while leaving the good stuff. Then, in the newly cleared patches, I’ll be sowing cover crops.

Green manure are superheroes when it comes to improving soil health.

A fellow garden writer has written about cover crops, as they play a key role in seasonal planting for edible gardens. However, the only things I’m harvesting 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 top of the list. For those wondering, the scaffolding is for roof repairs, and the garden boundaries are yet to be fixed, but the neighbours are on board with replacing them.

Cover crops are like superheroes for soil health. Bare soil invites weeds, which is why weeds appear. Yet by sowing vigorous crops, you can suppress weeds, attract pollinators, shelter beneficial insects, 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 thrive rather than look decorative. Once established, you can turn them under, chop them for mulch, or leave them on the surface for earthworms to incorporate. Their work 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.

It feels rewarding in sowing something that won’t stay forever – at least above ground.

Lisa Cole
Lisa Cole

Mira is a data scientist and tech writer specializing in analytics tools and digital transformation strategies.