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Saturday, October 17, 2026
Diamond Insight

Soil in need of some love? Sow green manure in your garden and you’ll enrich your soil.

I recently found a partially finished bottle of an energy drink 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.

All this is to say, the garden is in disarray. But there’s a lot to be said for negligence; after returning from holiday, I spotted a sunflower growing in the back corner.

Now, however, some urgent tidying is underway. As I’m expecting a baby, I’ve hired a local gardener to tackle invasive plants like green alkanet and young tree shoots 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.

A fellow garden writer has previously discussed cover crops, as they are essential in seasonal planting for edible gardens. But, the only things I’m harvesting from my garden right now are a few scrumped apples and some hardy herbs.

My ambitions for the garden are modest and consistent – and enhancing soil health 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 agree with the plan.

Green manure work wonders for your garden’s foundation. Soil likes to be covered, which is why weeds appear. But by sowing fast-growing plants, you can control weeds, bring in bees, shelter beneficial insects, and enrich the soil with nutrients.

Green manure plants may not look exciting – though some, like lupins ‘Blue Sonet’ and a flowering legume, have pretty flowers – but their role is to grow vigorously rather than look decorative. After they’ve grown, you can dig them into the soil, cut them for compost, or let them decompose for earthworms to pull down. Their work happens underground.

Now is the ideal time for sowing these cold-season plants. I’ve chosen rye grass, which breaks up heavy earth, a nitrogen-lifter, a weed-suppressor, and beans that aerate soil.

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

The writer

Thomas Sanders

A certified gemologist with over 15 years of experience in diamond appraisal and sustainable jewelry sourcing.

Diamond Insight

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