Mustard greens Petr Pakandl / CC BY-SA 2.5 · Source
garden

Mustard greens

Brassica juncea

EdibleMedicinal
Edible Partsleaves, seeds

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

LightFull Sun
MoistureModerate
Hardiness Zones9a — 11
Height1.22m
Spread0.3m
Growth HabitForb/herb
LifespanAnnual
Bloom ColorYellow
Pollinator Valuehigh

Habitat & Range

Habitat
Meadows & Open Areas
Cultivation Region
Northern temperate regions

Botanical data via projectGAIA.

Companion Planting & Soil

Good Companions

CeleryOnionPeaDill

Avoid Planting Near

Strawberry
Soil pH5.5 — 7
Soil TypeRich, moist, well-drained soil

Sowing & Propagation

Planting Depth2.5 cm
Seed Spacing15.2 cm
Germination Time7 days
Germination Temp25/10°C (Therm 12/12)
Germination Rate98%
Light for Germination12/12

Propagation Methods

seed

Planting Calendar

When to sow, transplant, and harvest by growing zone.

ZoneActionMonthsNotes
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].