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Saturday, October 17, 2026
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Does your garden soil need a boost? Sow green manure in your garden and you’ll enrich your soil.

Just the other day, I discovered a half-empty bottle of an energy drink left behind 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 a bit of a mess. But there’s a lot to be said for negligence; after returning from holiday, I spotted a sunflower sprouting in the back corner.

Now, however, some necessary firefighting is underway. As I’m expecting a baby, I’ve enlisted a professional gardener to tackle troublesome weeds 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 cover crops.

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

My gardening friend Claire has previously discussed cover crops, as they play a key role in seasonal planting 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 improving the soil is top of the list. 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 your garden’s foundation. Soil likes to be covered, which is why weeds appear. Yet by sowing vigorous crops, you can control 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 a flowering legume, have pretty flowers – but their role is to grow vigorously rather than look decorative. Once established, you can turn them under, cut them for compost, or leave them on the surface for earthworms to pull down. The real magic happens underground.

Autumn is perfect for sowing these overwintering crops. My selection includes rye grass, great for clay soil, Italian ryegrass, vetch, and beans that aerate soil.

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

The writer

Ralph Miller

Dr. Helena Voss is an astrophysicist and science communicator with a passion for making the universe accessible to all.

Stellar Palace Central

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