Mustard microgreens (Brassica juncea) are a brassica microgreen with a hot, pungent and wasabi-adjacent flavor, ready to harvest in 6-10 days. MicrogreenUSA grows them sushi-grade indoors for wholesale standing orders, and they are best for rich dishes and sushi heat.
Mustard microgreens bring wasabi-adjacent heat and aromatic depth, fast-growing and high-yield. They are the green to reach for when a dish needs a sinus-clearing kick that fresh horseradish or wasabi would otherwise provide.
Cuts through rich and fatty dishes - pork belly, foie, oily fish - and gives sushi programs a domestic wasabi-style accent.
Order Mustard Greens Wholesale →| Common name | Mustard Greens |
| Botanical name | Brassica juncea |
| Category | Brassica |
| Flavor | Hot, pungent, wasabi-adjacent |
| Grow time | 6-10 days |
| Best for | Rich dishes, sushi heat |
| Availability | Year-round wholesale |
| Minimum order | 5 lbs / week |
These figures are True Leaf Market's published guide for Mustard - Red Giant - Microgreens Seeds plus Mustard, Garnet Giant (2797M) from Johnny's Selected Seeds' 2017 yield trial, not our farm schedule (that is on our process page).
| Days to harvest | 8-12 days (Days to Maturity) |
| Flavor | A mild mustard flavor with mild spice |
| Seed per 1020 tray (Johnny's trial) | 8 g |
| Yield per 1020 tray (Johnny's trial) | 9.5 oz |
| Days to first true leaf (Johnny's) | 12.5 |
Sources: True Leaf Market, Johnny's Selected Seeds.
At 8-12 days (Days to Maturity), mustard is the 10th fastest of 18 varieties by supplier harvest window, tied with broccoli, kale, purple kohlrabi and Swiss chard. Its 9.5 oz trial yield is 5th of 13, 1.19 oz of mustard per gram of seed.
Not from a lab: FoodData Central has no entry for mustard microgreens, so we print no nutrient figures.
FDA classes mustard microgreens as covered produce, not sprouts (FDA guidance).