Mustard Seed Green Manure

SKU: MAS-GM03-500-Grams
Mustard Seed Green Manure

Mustard Seed Green Manure

SKU: MAS-GM03-500-Grams
✔Naturally adds organic matter to soil
✔Sow from spring to early autumn
✔Attractive to pollinators
✔100% wildflower seed
Sowing rate: 4.5g p/m²
Regular price £14.00
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Mustard is an easy to grow, member of the brassica family (so avoid planting brassicas directly afterwards).  The brilliant yellow flowers provide nectar and pollen for a wide range of pollinating insects.  It produces large amounts of green matter which, when dug into the soil, will help improve soil structure and moisture retention.

Sow from spring to early autumn and dig into the soil before flowering.

To dig in - chop up the green manure with a spade and turn it into the top 10-12cm of soil. Alternatively, cut down and leave the clippings on the soil and cover to exclude the light using cardboard and grass cuttings or a biodegradable ground cover.  Leave for at least 6 weeks, by which point the green manure will have broken down and been incorporated into the soil by earth worms.


March through to September.

Growing time

1 -2 months.

Soil Type:




How to establish

Dig the soil over and remove any weeds. Tread the soil then broadcast the seeds. Rake the soil and water. In dry periods you may need to water until the mustard is established.


Green manure should be cut down before flowering. It can be dug into the soil or left on the top as a mulch.

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