Petr Pakandl / CC BY-SA 2.5 · Source
Mustard greens
Brassica juncea
Overview
Spicy, bold-flavored greens that bring heat and depth to salads, stir-fries, and Southern cooking traditions. Mustard greens come in a kaleidoscope of varieties — from the giant, crinkled leaves of Southern types to the beautiful red and purple Asian cultivars. Their pungent glucosinolates, the same compounds found in horseradish and wasabi, are among the most potent cancer-fighting phytochemicals in the plant kingdom.
Brassica juncea, commonly known as mustard greens, brown mustard, Chinese mustard, Indian mustard, Japanese mustard, Korean green mustard, leaf mustard, Oriental mustard, and vegetable mustard, is a species of mustard plant. Cultivars can be divided into four major subgroups: integrifolia, juncea, napiformis, and tsatsai.
In a 100-gram reference serving, cooked mustard greens provide 110 kilojoules (26 kilocalories) of food energy. They are a rich source (20% or more of the Daily Value) of vitamins A, C, and K—K being especially high as a multiple of its Daily Value. Mustard greens are also a moderate source of vitamin E and calcium. The leaves, seeds, and stems of this mustard variety are edible.
The plant appears in some form in African, Bangladeshi, Chinese, Filipino, Tripuri, Italian, Indian, Japanese, Okinawan, Nepali, Pakistani, Korean, Southern, Taiwanese, and African-American (soul food) cuisines. Cultivars of B. juncea are grown for their greens and for the production of mustard oil. The mustard condiment made from the seeds of the B. juncea is called brown mustard and is considered to be spicier than yellow mustard.
Growing Conditions
Habitat & Range
- Habitat
- Meadows & Open Areas
- Cultivation Region
- Northern temperate regions
Botanical data via projectGAIA.
Companion Planting & Soil
Good Companions
Avoid Planting Near
Sowing & Propagation
Propagation Methods
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Direct Sow | May — Jun | Direct sow after last frost; bolts quickly in heat |
| Cold (1-2) | Harvest | Jun — Jul | Harvest baby leaves or full size; 30-45 days |
| Cool (3-4) | Direct Sow | Mar — Apr | Sow early spring; succession sow every 2 weeks |
| Cool (3-4) | Direct Sow | Aug — Sep | Fall sowing for spicy greens |
| Cool (3-4) | Harvest | Apr — May | Harvest before bolting; cut-and-come-again |
| Cool (3-4) | Harvest | Sep — Oct | Fall harvest |
| Moderate (5-7) | Direct Sow | Feb — Apr | Cool-season crop; bolts above 75°F |
| Moderate (5-7) | Direct Sow | Aug — Oct | Fall crop; light frost sweetens leaves |
| Moderate (5-7) | Harvest | Mar — May | Harvest before heat |
| Moderate (5-7) | Harvest | Sep — Nov | Fall harvest |
| Warm (8-9) | Direct Sow | Sep — Nov | Fall/winter crop; too hot for spring |
| Warm (8-9) | Harvest | Nov — Feb (wraps) | Harvest during cool season |
| Hot (10+) | Direct Sow | Oct — Feb (wraps) | Cool-season crop only |
| Hot (10+) | Harvest | Nov — Mar (wraps) | Harvest during winter |
Uses
Culinary
- Braised with smoked meat in Southern cuisine
- Raw baby leaves in spicy salad mixes
- Stir-fried with garlic in Asian cooking
Medicinal
- Exceptionally high in glucosinolates for cancer prevention
- Rich in vitamins K, A, and C
- Anti-inflammatory and antioxidant properties
Other Uses
- Biofumigant cover crop — glucosinolates suppress soil pathogens when tilled in
Safety Notes
Mustard allergy possibly especially in children and adolescents. Retention of seeds possibly in intestines if taken internally [301].