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Sunn Hemp (Coated)
Back

Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per acre of green tonnage, with a maximum of 100 units of Nitrogen fixation per acre in as little as 60 days. It is also known to suppress nematodes.

Product Detail

  • Pre-inoculated and non-gmo
  • Nitrogen fixing legume
  • Fast growing
  • Used as cover crop, soil building and green manure forage
  • Supresses nematodes

 

Product Information

Legume family (Fabaceae). Branched, erect, herbaceous shrubby annual growing 3 to 9 feet high with bright green simple, elliptical leaves. It has deep yellow terminal flowers (open raceme to 10 inches long) and the light brown pods are small (1 inch long and 1/2 inch wide) and inflated.  It has a well-developed root system, with a strong taproot. The number of seeds per pound is 15,000.

Sunn Hemp is much easier to get incorporated into the soil when needed than sorghum, cowpeas, and many other cover crop varieties. Sunn Hemp is the next generation cover crop for vegetable farmers.

Sunn Hemp is COATED.  This means that the seed is coated with inoculant as a more convenient option for the user.  Inoculant is extremely important for the lifespan and health of the legume.  The inoculant is compiled of rhizobacteria that fixes itself to the root nodules of legumes and promotes nitrogen and phosporus production causing optimal plant health.  So incredibly important for cover crops!

NOTES: Sunn Hemp can be toxic if ingested by humans!

Used as a cover crop, Sunn Hemp can improve soil properties, reduce soil erosion, conserve soil water, and recycle plant nutrients. 

When grown as a summer annual, Sunn Hemp can produce over 5,000 lbs. of biomass and 100 lbs. of nitrogen per acre. It can produce this amount within 60 to 90 days, so it has the potential to build organic matter levels and sequester carbon in the soil. It is known to suppress nematodes.

Sunn Hemp originated in India, where it has been grown since the dawn of agriculture. It has been utilized as a green manure, livestock feed, and as a non-wood fiber crop.


Sunn hemp is a tropical or sub-tropical plant that, when grown in the continental United States, performs like a Summer annual. It can be planted year-round in Hawaii, below an elevation of 1,000 feet. However, it does not perpetuate itself well and is not found in the wild. Sunn Hemp is adapted to a wide range of soils, and performs better on poor sandy soils than most crops. It is for such situations that it has attracted attention. It grows best on well-drained soils with a pH from 5.0 to 7.5.

 

Back
Climate Zone(s)
Cool Season
Transition Zone
Warm Season
Coated or Raw
Coated
Fertilizer
Varies
GMO
No
Ideal pH
5.0 - 7.5
Inoculant Needed
No
Life Cycle
Annual
Overseeding Rate
Not Applicable
Seeding Depth
1/4 - 1/2 inch
Seeding Rate - Broadcast
30 - 50 lbs. per acre
Seeding Rate - Drilled
25 - 35 lbs. per acre
When to plant
Spring & Summer
Back


Plant at a rate of 25 to 35 lbs. per acre if drilled, or 30 to 50 lbs. per acre if broadcast. The higher seeding rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Plant after the last chance of frost in the spring when your nighttime temperatures are consistently above 65 degrees F. Use an EL Type or Garden Combo Inoculant. 

This plant may become weedy or invasive in some regions or habitats and may displace desirable vegetation if not properly managed. Please consult with your local NRCS Field Office, Cooperative Extension Service office, state natural resource, or state agriculture department regarding its status and use. Weed information is also available from the PLANTS Web site at plants.usda.gov.

As of 2005, Arkansas considered the genus Crotalaria as a noxious weed. Please consult the PLANTS Web site and your State Department of Natural Resources for this plant's current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values).

To establish a successful stand, seed should be broadcast or drilled and covered 1/2 to 1 in. deep into a well-prepared, weed-free seedbed. If broadcasted, seed at a rate of 40 to 60 lbs. of live seed per acre. If drilled, the rate should be 30 to 50 lbs. per acre in 6 in. rows. The higher rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Where weed competition is mild, drilled rates as low as 20 lbs. of live seed per acre have been satisfactory. Inoculate with the Cowpea-type rhizobia bacteria.

Using a winter cover crop/green manure is a conservation practice that provides soil-improving characteristics. A common problem, however, is that the relatively short period between cash crop harvest in the Fall and planting the following Spring can result in less than optimum biomass production of the cover crop. Sunn Hemp, because of its rapid growth and relatively short growing season requirement, can be an excellent alternative. Where conditions are favorable, it 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.

Warm weather (frost-free) is needed for 8 to 12 weeks to provide biomass and nitrogen. Small grains following Sunn Hemp can utilize the symbiotically produced nitrogen, thus reducing or eliminating the loss of nitrogen. It must be plowed under before reaching the full bloom stage or it becomes too fibrous when using it as a green manure.

Sunn Hemp (Coated)

Sunn Hemp (Coated)
Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per acre of green tonnage, with a maximum of 100 units of Nitrogen fixation per acre in as little as 60 days. It is also known to suppress nematodes.**This seed is pre-inoculated**
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More Info
Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per...
Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per acre of green tonnage, with a maximum of 100 units of Nitrogen fixation per acre in as little as 60 days. It is also known to suppress nematodes. Product Detail Pre-inoculated and non-gmo Nitrogen fixing legume Fast growing Used as cover crop, soil building and green manure forage Supresses nematodes   Product Information Legume family (Fabaceae). Branched, erect, herbaceous shrubby annual growing 3 to 9 feet high with bright green simple, elliptical leaves. It has deep yellow terminal flowers (open raceme to 10 inches long) and the light brown pods are small (1 inch long and 1/2 inch wide) and inflated.  It has a well-developed root system, with a strong taproot. The number of seeds per pound is 15,000. Sunn Hemp is much easier to get incorporated into the soil when needed than sorghum, cowpeas, and many other cover crop varieties. Sunn Hemp is the next generation cover crop for vegetable farmers. Sunn Hemp is COATED.  This means that the seed is coated with inoculant as a more convenient option for the user.  Inoculant is extremely important for the lifespan and health of the legume.  The inoculant is compiled of rhizobacteria that fixes itself to the root nodules of legumes and promotes nitrogen and phosporus production causing optimal plant health.  So incredibly important for cover crops!NOTES: Sunn Hemp can be toxic if ingested by humans! Used as a cover crop, Sunn Hemp can improve soil properties, reduce soil erosion, conserve soil water, and recycle plant nutrients. When grown as a summer annual, Sunn Hemp can produce over 5,000 lbs. of biomass and 100 lbs. of nitrogen per acre. It can produce this amount within 60 to 90 days, so it has the potential to build organic matter levels and sequester carbon in the soil. It is known to suppress nematodes.Sunn Hemp originated in India, where it has been grown since the dawn of agriculture. It has been utilized as a green manure, livestock feed, and as a non-wood fiber crop. Sunn hemp is a tropical or sub-tropical plant that, when grown in the continental United States, performs like a Summer annual. It can be planted year-round in Hawaii, below an elevation of 1,000 feet. However, it does not perpetuate itself well and is not found in the wild. Sunn Hemp is adapted to a wide range of soils, and performs better on poor sandy soils than most crops. It is for such situations that it has attracted attention. It grows best on well-drained soils with a pH from 5.0 to 7.5.  
Climate Zone(s)
Cool Season
Transition Zone
Warm Season
Coated or Raw
Coated
Fertilizer
Varies
GMO
No
Ideal pH
5.0 - 7.5
Inoculant Needed
No
Life Cycle
Annual
Overseeding Rate
Not Applicable
Seeding Depth
1/4 - 1/2 inch
Seeding Rate - Broadcast
30 - 50 lbs. per acre
Seeding Rate - Drilled
25 - 35 lbs. per acre
When to plant
Spring & Summer

Instructions

Plant at a rate of 25 to 35 lbs. per acre if drilled, or 30 to 50 lbs. per acre if broadcast. The higher seeding rates should be used if the crop will be terminated in less than 60 days, or...
Plant at a rate of 25 to 35 lbs. per acre if drilled, or 30 to 50 lbs. per acre if broadcast. The higher seeding rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Plant after the last chance of frost in the spring when your nighttime temperatures are consistently above 65 degrees F. Use an EL Type or Garden Combo Inoculant. This plant may become weedy or invasive in some regions or habitats and may displace desirable vegetation if not properly managed. Please consult with your local NRCS Field Office, Cooperative Extension Service office, state natural resource, or state agriculture department regarding its status and use. Weed information is also available from the PLANTS Web site at plants.usda.gov. As of 2005, Arkansas considered the genus Crotalaria as a noxious weed. Please consult the PLANTS Web site and your State Department of Natural Resources for this plant's current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values).To establish a successful stand, seed should be broadcast or drilled and covered 1/2 to 1 in. deep into a well-prepared, weed-free seedbed. If broadcasted, seed at a rate of 40 to 60 lbs. of live seed per acre. If drilled, the rate should be 30 to 50 lbs. per acre in 6 in. rows. The higher rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Where weed competition is mild, drilled rates as low as 20 lbs. of live seed per acre have been satisfactory. Inoculate with the Cowpea-type rhizobia bacteria.Using a winter cover crop/green manure is a conservation practice that provides soil-improving characteristics. A common problem, however, is that the relatively short period between cash crop harvest in the Fall and planting the following Spring can result in less than optimum biomass production of the cover crop. Sunn Hemp, because of its rapid growth and relatively short growing season requirement, can be an excellent alternative. Where conditions are favorable, it 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.Warm weather (frost-free) is needed for 8 to 12 weeks to provide biomass and nitrogen. Small grains following Sunn Hemp can utilize the symbiotically produced nitrogen, thus reducing or eliminating the loss of nitrogen. It must be plowed under before reaching the full bloom stage or it becomes too fibrous when using it as a green manure.
Similar Products
Sunn Hemp (Coated)

Sunn Hemp (Coated)

66 reviews

Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per acre of green tonnage, with a maximum of 100 units of Nitrogen fixation per acre in as little as 60 days. It is also known to suppress nematodes.**This seed is pre-inoculated**

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Sunn Hemp (Coated) Description

Sunn Hemp is a fast-growing, nitrogen-fixing legume. Sunn Hemp is used for green manure forage, organic soil building and cover crop applications. Sunn Hemp is non seed-bearing in the North American climates. Sunn Hemp provides as much as 2.5 tons per acre of green tonnage, with a maximum of 100 units of Nitrogen fixation per acre in as little as 60 days. It is also known to suppress nematodes.

Product Detail

  • Pre-inoculated and non-gmo
  • Nitrogen fixing legume
  • Fast growing
  • Used as cover crop, soil building and green manure forage
  • Supresses nematodes

 

Product Information

Legume family (Fabaceae). Branched, erect, herbaceous shrubby annual growing 3 to 9 feet high with bright green simple, elliptical leaves. It has deep yellow terminal flowers (open raceme to 10 inches long) and the light brown pods are small (1 inch long and 1/2 inch wide) and inflated.  It has a well-developed root system, with a strong taproot. The number of seeds per pound is 15,000.

Sunn Hemp is much easier to get incorporated into the soil when needed than sorghum, cowpeas, and many other cover crop varieties. Sunn Hemp is the next generation cover crop for vegetable farmers.

Sunn Hemp is COATED.  This means that the seed is coated with inoculant as a more convenient option for the user.  Inoculant is extremely important for the lifespan and health of the legume.  The inoculant is compiled of rhizobacteria that fixes itself to the root nodules of legumes and promotes nitrogen and phosporus production causing optimal plant health.  So incredibly important for cover crops!

NOTES: Sunn Hemp can be toxic if ingested by humans!

Used as a cover crop, Sunn Hemp can improve soil properties, reduce soil erosion, conserve soil water, and recycle plant nutrients. 

When grown as a summer annual, Sunn Hemp can produce over 5,000 lbs. of biomass and 100 lbs. of nitrogen per acre. It can produce this amount within 60 to 90 days, so it has the potential to build organic matter levels and sequester carbon in the soil. It is known to suppress nematodes.

Sunn Hemp originated in India, where it has been grown since the dawn of agriculture. It has been utilized as a green manure, livestock feed, and as a non-wood fiber crop.


Sunn hemp is a tropical or sub-tropical plant that, when grown in the continental United States, performs like a Summer annual. It can be planted year-round in Hawaii, below an elevation of 1,000 feet. However, it does not perpetuate itself well and is not found in the wild. Sunn Hemp is adapted to a wide range of soils, and performs better on poor sandy soils than most crops. It is for such situations that it has attracted attention. It grows best on well-drained soils with a pH from 5.0 to 7.5.

 

Climate Zone(s)
Cool Season
Transition Zone
Warm Season
Coated or Raw
Coated
Fertilizer
Varies
GMO
No
Ideal pH
5.0 - 7.5
Inoculant Needed
No
Life Cycle
Annual
Overseeding Rate
Not Applicable
Seeding Depth
1/4 - 1/2 inch
Seeding Rate - Broadcast
30 - 50 lbs. per acre
Seeding Rate - Drilled
25 - 35 lbs. per acre
When to plant
Spring & Summer


Plant at a rate of 25 to 35 lbs. per acre if drilled, or 30 to 50 lbs. per acre if broadcast. The higher seeding rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Plant after the last chance of frost in the spring when your nighttime temperatures are consistently above 65 degrees F. Use an EL Type or Garden Combo Inoculant. 

This plant may become weedy or invasive in some regions or habitats and may displace desirable vegetation if not properly managed. Please consult with your local NRCS Field Office, Cooperative Extension Service office, state natural resource, or state agriculture department regarding its status and use. Weed information is also available from the PLANTS Web site at plants.usda.gov.

As of 2005, Arkansas considered the genus Crotalaria as a noxious weed. Please consult the PLANTS Web site and your State Department of Natural Resources for this plant's current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values).

To establish a successful stand, seed should be broadcast or drilled and covered 1/2 to 1 in. deep into a well-prepared, weed-free seedbed. If broadcasted, seed at a rate of 40 to 60 lbs. of live seed per acre. If drilled, the rate should be 30 to 50 lbs. per acre in 6 in. rows. The higher rates should be used if the crop will be terminated in less than 60 days, or if severe weed competition is expected. Where weed competition is mild, drilled rates as low as 20 lbs. of live seed per acre have been satisfactory. Inoculate with the Cowpea-type rhizobia bacteria.

Using a winter cover crop/green manure is a conservation practice that provides soil-improving characteristics. A common problem, however, is that the relatively short period between cash crop harvest in the Fall and planting the following Spring can result in less than optimum biomass production of the cover crop. Sunn Hemp, because of its rapid growth and relatively short growing season requirement, can be an excellent alternative. Where conditions are favorable, it 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.

Warm weather (frost-free) is needed for 8 to 12 weeks to provide biomass and nitrogen. Small grains following Sunn Hemp can utilize the symbiotically produced nitrogen, thus reducing or eliminating the loss of nitrogen. It must be plowed under before reaching the full bloom stage or it becomes too fibrous when using it as a green manure.

Customer Reviews
4.4 Based on 66 Reviews
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JS
10/17/2020
Joseph S.
United States United States
Excellent germination

It is everything I expected. And more It germinated in three days in 100 degree temperatures. It is now about 7 ft. tall and flowering as in your photo. Expecting a massive amount of biomass.

10/20/2020
Hancock Seed

Awesome! Glad you are seeing such amazing results with the sunn hemp seed! 7 feet tall that is great! Thank you for your review and for choosing Hancock Seed!

GT
10/02/2020
George T.
United States United States
Sunn hemp

Did not plant yet. Will plant in spring

10/06/2020
Hancock Seed

Excellent! We are sure you will have great results! Thank you for your review and for choosing Hancock Seed!

FV
09/30/2020
Frank V.
United States United States
Never grew!

Your sunhemp never germinated and never came up

10/01/2020
Hancock Seed

We are sorry to hear about the problems that you have encountered. If you would like, you can fill out the claims form which is under the customer service tab on our website. We are happy to look into this and see what may have happened - Thank you for your review!

BD
08/28/2020
BRIAN D.
United States United States
Great product and service

Always happy with My seed purchases from Hancock seed co. Thank you!

09/17/2020
Hancock Seed

Excellent! Glad you are happy with your purchase of sunn hemp seed! We are sure it will do amazing! Thank you for your review!

NM
08/26/2020
Nicholas M.
United States United States
Love this Sunn Hemp

Great experience, fast shipping & best of all they offer this seed coated so that you will benefit from the nitrogen fixing potential of this plant. Check out @Hendon Farm on you tube. We use this product in our market garden.

09/17/2020
Hancock Seed

Awesome! Glad you are loving the sunn hemp seed! It is a versatile legume and can be used for several different applications such as cover crops, food plots and pastures. Thank you for your review!

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