Amazing, but scarce . . .

This amazing plant, legendary for its ability to rejuvenate soil, has been almost unknown in North America due to the scarcity and cost of seed. Until now, that is.

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Introducing Global Sunn™

Global Sunn is the leading, most widely available brand of top quality sunn hemp seed found anywhere, and is available in North America only through Integrity Seeds.

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Here you can buy a 1 pound bag or a truckload of top quality Global Sunn seed for vegetable production, for mixing with other species for a cover crop mix or other high acreage applications.

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It's All About Quality!

With global sources for top quality seed, which is cleaned, sorted and tested for high germination before it goes into the bag, Global Sunn represents the greatest value in sunn hemp seed available in North America. Supplies are good, but they are limited. So the sooner you act the better your chances of getting the Global Sunn seed you will need this season.

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Availability

Global Sunn is available from one 50 pound bag up to a truckload or more. It is planted at 15 pounds per acre at 7.5" rows when planted with a grain drill. See Resources for planting tips for precision planting and additional details.

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Nematode Suppression

As a warm season cover crop legume, Sunn Hemp increases soil organic matter, provides nitrogen, grows in low fertility sandy soils, and does not harbor most types of nematodes most destructive to crops in North America, generally found in sandy soils in Southern growing regions.

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Nitrogen and Biomass Production

Sunn Hemp (Crotalaria juncea L.) is native to the tropics, but grows in North America as a summer annual. It can produce over 5,000 pounds of biomass and up to 140 pounds of nitrogen per acre, depending on conditions.

 

Sunn Hemp adds significant nitrogen to depleted soils, such as following small grain harvest, as a break crop in sugar cane production, and with vegetables grown in loose sandy soils, where it also adds up to two and a half tons of organic matter.

 

When to Plant Sunn Hemp

Sunn Hemp nodulates readily with native cowpea-type rhizobia inoculant. This is applied just prior to planting. Because of its fast growth, Global Sunn only needs 8 to 12 weeks of frost-free growth conditions to achieve good results. This makes it an excellent choice where there is a relatively short window following cash crop harvest in the fall and the onset of winter.

 

Where conditions are favorable, Sunn Hemp can provide the benefits of a winter legume prior to a killing frost in the fall, and also in the summer after the winter crop has been harvested.

 

Termination

Sunn Hemp grows rapidly and achieves economic value as a cover crop in about 60 days. Sunn Hemp is killed by the first frost. The management cue for termination (burn down) is when the first flower buds begin to appear.

 

 

Global Sunn™ is a trademark of Sunn Global Biologics LLC for Crotalaria Juncea. In North Åmerica Global Sunn is distributed exclusively through Integrity Seeds LLC.