How to Grow Dijon 667 Mustard
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Dijon 667 Mustard
Brassica juncea
vegetableDijon 667 is a brown mustard variety bred specifically for mustard seed production and culinary use. Known for its pungent flavor and high oil content, it produces seeds that are ideal for making traditional Dijon mustard condiment. This cool-season crop is relatively quick-maturing and adaptable to various growing conditions.
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Example Dijon 667 Mustard timeline · Pittsburgh, PA (Zone 6b)
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Plant Dijon 667 Mustard
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Dijon 667 Mustard
Around Jul 11≈ 85 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Dijon 667 Mustard dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8, can grow in zones 3-9 with proper timing
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Get my Dijon 667 Mustard timeline →Growth Stages
Seedling
2-3 weeksCotyledons emerge within 7-10 days. True leaves appear shortly after, with a characteristic mustard leaf shape beginning to develop.
Keep soil consistently moist. Thin seedlings to proper spacing when first true leaves appear. Protect from slugs and flea beetles.
Vegetative Growth
4-5 weeksPlant develops robust foliage with deeply lobed leaves. Stem thickens and plant grows 18-24 inches tall.
Monitor for pests weekly. Water moderately. Side-dress with nitrogen fertilizer if growth slows. Remove any yellow or damaged leaves.
Flowering
2-3 weeksSmall yellow flowers appear on terminal racemes. The plant transitions energy from vegetative to reproductive growth.
Continue regular watering, especially important during flower development. Ensure adequate potassium and phosphorus for seed set. Avoid excessive nitrogen.
Pod/Seed Development
3-4 weeksFlowers fade and siliques (seed pods) develop along the stems. Pods elongate and begin to fill with seeds.
Reduce watering slightly to encourage seed maturation. Monitor for late-season pests. Do not fertilize during this stage.
Maturity & Harvest
1-2 weeksPods turn brown and papery, seeds darken to reddish-brown color. Plant may senesce and leaves begin to yellow.
Stop watering to allow complete seed drying. Monitor for shattering (pods opening prematurely). Harvest when pods are brown but before seeds spill.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers on seedlings. Apply neem oil or spinosad if infestations are heavy. Encourage natural predators like ladybugs.
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Strong water spray to dislodge. Insecticidal soap. Introduce parasitic wasps or ladybugs. Neem oil as needed.
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Bacillus thuringiensis (Bt) spray. Pheromone traps for monitoring. Encourage parasitoid wasps.
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Handpick, especially at dusk. Beer traps. Copper barriers. Encourage ground beetles and centipedes.
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Remove infected leaves promptly. Improve air circulation. Avoid overhead watering. Sulfur dust if needed.
Uses
Mustard Condiment Production
CulinaryDijon 667 seeds are the traditional variety used to produce authentic Dijon mustard. The seeds can be ground and mixed with verjuice, spices, and other ingredients to create the classic French condiment, or used whole as a pickling spice. [source]
Mustard Powder & Spice
CulinaryDried seeds can be ground into a fine powder to use as a pungent spice in cooking, marinades, salad dressings, and meat rubs. The flavor is sharper and more complex than yellow mustard varieties. [source]
Microgreens & Sprouts
CulinaryYoung mustard greens and sprouts are peppery, nutritious additions to salads and sandwiches. They can be harvested at the microgreen stage (7-10 days) for intense flavor in minimal space. [source]
Traditional Remedy & Warming Properties
MedicinalMustard seeds have been used in traditional medicine for their warming properties and to support respiratory health and circulation. Mustard plasters and poultices were historically applied to skin for therapeutic purposes. [source]
Natural Cleaning & Preservation
HouseholdMustard seed oil can be extracted for culinary and household uses. The plant also has mild antimicrobial properties and was historically used in food preservation methods. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when 70-80% of pods have turned brown and are papery to the touch, typically 85-110 days after planting. Cut entire plant at soil level or pull up by roots and hang upside down in a dry, well-ventilated location for 1-2 weeks to complete drying. Thresh seeds from pods by hand or with a flail once completely dry. Store dried seeds in a cool, dry place. For microgreens, harvest at 7-10 days when true leaves emerge.
Fun Facts
- 🌱 Dijon 667 is specifically named after the French city of Dijon, which has been the center of mustard production since the 13th century. The '667' designation refers to the specific breeding line developed for optimal seed characteristics.
- 🌱 Brown mustard (Brassica juncea) is significantly more pungent than yellow mustard (Sinapis alba) because it contains glucosinolates that produce sharp, spicy compounds when seeds are crushed or ground.
- 🌱 Mustard is one of the oldest spices and has been cultivated for over 3,000 years. Ancient Romans ground mustard seeds with grape juice to create 'mustum ardens' (burning must), which is the origin of the word 'mustard.'
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