Where can I plant Mighty Mustard®?

  • Potato production
  • Corn and soybean systems
  • Vegetable row crop production
  • Grain production
  • Vineyards
  • No-till and low-till systems
  • Hoop houses & high tunnels
  • Home gardens
  • Tired, fallow soil in need of rehabilitation

Varieties of Mighty Mustard®

Pacific Gold: Excellent at reducing insects, soilborne fungal pathogens and nematodes
Kodiak: Best at supressing harmful soilborne pathogens, nematodes and insects.  Produces the more biomass than Pacific Gold.
White Gold: Best for suppressing weeds, high biomass producer
Trifecta Power Blend®️: A mix of our three top varieties; Kodiak, White Gold and Pacific Gold, this blend is ideally suited for giving a grower the maximum soilborne pathogen AND weed suppression benefits.  Also produces a high volume of biomass.

How to plant Mighty Mustard®:

Work up the ground to a good, moist seedbed.  Sprinkle or broadcast seeds onto the surface and lightly rototill, rake or harrow them into the soil, to a depth of about 1 inch. Follow immediately with light irrigation. Plants will not emerge if soil crusts. If it is seeded shallow, with good moisture and soil temperatures above 50° Fahrenheit, your mustard plants should emerge within 4 to 5 days.



DRILL SEEDING RATE (Set at 0; Or use the setting for alfalfa or canola)


Pacific Gold

Drill set at 0: 4-6 lbs/acre

10-15 lbs./acre, or .5 lbs./1,000 sq. ft.





Drill set at 0: 4-6 lbs/acre

10-15 lbs./acre, or .5 lbs./1,000 sq. ft.




White Gold

Drill set at 0: 4-6 lbs/acre

10-15 lbs./acre, or .5 lbs./1,000 sq. ft.

Trifecta Power Blend®️

Drill set at 0: 4-6 lbs/acre


10-15 lbs./acre, or .5 lbs./1,000 sq. ft.


Mighty Mustard® water recommendations

Water as necessary. If you are growing the mustard to full bloom, total water needs should be about 7 to 8 inches of irrigation. Warmer temperatures increase the need for water.

Optimal growing temperatures

65-80 degrees Fahrenheit. Cooler temperatures will result in a slower rate of growth.

How long will it take Mighty Mustard® to bloom?

The average is 35-40 days, depending on the soil temperature.




Pacific Gold

4 – 6 weeks

1 – 2 feet


8 – 12 weeks

5 – 6 feet at full bloom

Kodiak & Trifecta Power Blend®️

4 – 6 weeks

1 – 2 feet


8 – 12 weeks

5 – 7 feet at full bloom

White Gold

4 – 6 weeks

1 – 2 feet


8-12 weeks


5 – 7 feet at full bloom


How to incorporate Mighty Mustard® into your soil

When the plants are in full bloom, use a flail mower to chop the plants as finely as possible. Till the green manure immediately to quickly release the glucosinolates into the soil and hasten biomass breakdown. Water until the top 6 inches of soil is wet. Wait at least three weeks to plant vegetable or fruit crops.

How does Mighty Mustard® weather the cold?

Mustard will withstand a light frost, down to 26 degrees Fahrenheit, and succumb to killing frosts. You have the option of mowing and incorporating the mustard at the first signs of flowering, immediately after it is killed by frost, or the following spring.

Can I blend Kodiak, Pacific Gold and White Gold?

Yes. Based on our experiences, White Gold will bolt first, then be taken over by the Kodiak and Pacific Gold.

Does Mighty Mustard® work in a cover crop mixture?

Yes, if you reduce the seeding rate to 4-10 pounds per acre. If you want Mighty Mustard® to play a dominant role in the cover crop “cocktail,” aim for 8-10 pounds per acre. If you want Mighty Mustard® to play a less prominent role, plant 4-5 pounds per acre. This is a new area of study, so more precise recommended seeding rates are still being researched.

How Mighty Mustard® improves soil health:

  • Sinalbin (a.k.a. 4-hydroxybenzyl) glucosinolates target weed germination
  • Sinigrin (a.k.a. allyl or 2-propenyl) glucosinolates suppress soilborne pathogens & harmful nematodes
  • Tests negative for black rot and blackleg
  • Captures nutrients with deep taproots
  • Recycles & redistributes nitrogen in soil profile
  • Increases active soil organic matter that feeds soil microbes
  • Reduces nutrient runoff
  • improves soil aeration & water penetration
  • Reduces wind & water erosion
  • Stores carbon
  • Provide an all-natural alternative to toxic chemicals

How much biomass will Mighty Mustard® produce?

Kodiak:  5 to 6 tons per acre
Pacific Gold:  4 to 5 tons per acre
White Gold:  5 to 6 tons per acre

Is Mighty Mustard® safe to use around children and pets?

Yes. Mighty Mustard® is non-toxic. However, due to its extreme spiciness, children and pets SHOULD NOT eat the mustard seeds or plants, or rub their eyes after touching the mustard seeds or plants.

Is it safe for animals to eat Mighty Mustard®?

We recommend that you do not feed Mighty Mustard® to your animals, as the glucosinolates in mustard can "irritate the digestive tracts or create thyroid problems in livestock if consumed in large quantities over time." (DiTomaso and Healy, 2007) Mighty Mustard® is not suitable for grazing by any livestock. If you have further questions, please consult your veterinarian, as we want to ensure the safety of all animals.

How does Mighty Mustard® recycle nitrogen?

All three varieties of Mighty Mustard® have taproots that can grow 3 to 6 feet, depending on the growing conditions. These taproots pull nitrogen from deep in the soil profile, and push it up into the plant’s leaves. When you incorporate chopped Mighty Mustard® into the soil, you then redistribute the nitrogen to the top two feet of soil, making it readily accessible to the roots of your fruits, vegetables and other crops.

Mustards are a 14:1, C:N ratio. With a low C:N ratio, such as a mustard crop, you could see a surplus of N in the soil, a benefit we tout for nutrient recycling with the incorporation of a brassica cover crop. 

Can Mighty Mustard® reduce harmful nematodes?

Reduce? Yes. Eliminate? No. According to researchers at Washington State University, mustard green manures can “suppress Columbia root-knot nematodes and may be effective against other types of nematodes.” However, mustard cover crops “should be used to enhance, not eliminate, chemical control of nematodes.” It’s also important to remember that if your soil contains a large number of nematodes, mustard green manures will not effectively reduce them.

Is Mighty Mustard® as effective as chemical pesticides and herbicides?

No. Mighty Mustard® is all-natural planting seed, not a lab-created chemical mixture. Like all crops, our mustards are affected by environmental growing conditions, which can impact their growth rate and glucosinolate levels. Please keep in mind that Mighty Mustard® provides additional benefits to the soil that commercial treatments don’t. To learn more about Mighty Mustard’s® benefits, please read, “What can Mighty Mustard® do for me?

Can Mighty Mustard® replace chemical pesticides & herbicides?

The answer depends on your situation. Some growers have used our mustards to replace chemicals, while others incorporate them as part of their Integrated Pest Management strategies.

Does Mighty Mustard® work in a no-till system?

Yes. If you mow the mustard, you’ll build a “trash layer” on top of the soil. Since most microbial action or breakdown is in the top two inches of the soil, you would still feed those organisms and benefit your soil. You would still recycle nitrogen, as well, but it may take longer for it to become available for the following crop. This is because it takes longer for the microorganisms to feed on the trash and convert it to nitrogen. Be aware that you may lose a lot of the fumigation properties of the mustard if it’s not incorporated into the soil.

The Rodale Institute is experimenting with Mighty Mustard® in a no-till, roller-crimping system. You can learn more about it here.

Can you direct seed into Mighty Mustard®?

Yes. Sustainable wheat growers in the Pacific Northwest direct seed wheat into the stalks of harvested mustard plants with great success.


Where can I buy Mighty Mustard®?

Click HERE to go to our Where To Buy section for a list of retailers and distributors. We’re constantly reaching out to new retailers and distributors nationwide to find new partners, so stay tuned! For questions, please call Kim or Matt at Davidson Commodities, located in Spokane, WA. Our phone number is (509) 487-0755. You may also send an e-mail to:

Is Mighty Mustard® the right cover crop for me?

If you live in the Midwest, and you are wondering what cover crops may work best for you, check out this Cover Crops Decision Tool from the Midwest Cover Crops Council. Mighty Mustard® Pacific Gold is "oriental mustard."

If you'd like more information about how Mighty Mustard® may work for you, please call Matt or Kim at (509)487-0755.


For more information, please visit our FAQ page, or click on Varieties, Background, or Benefits.


"It is cold tolerant and seems to thrive."

"We are using it as a cover crop following our garlic harvest.  It is cold tolerant and seems to thrive regardless of our cold, wet spring and fall here, which is a huge benefit."

"A light frost will not harm a well-developed plant, so it keeps growing into the cool, autumn months, providing more biomass for green manure.  We're pretty happy with the results."

- Diane Green, Greentree Naturals

Sandpoint, Idaho