Japanese Mustard ( Brassica juncea ) is an annual green vegetable grown for its mild, tasty leaves. This variety of Mustard Greens is ideal for salads with its mild flavour and rich green colour. Leaves are tender and can be added to stir-fry’s, sandwiches, salads or used to make a tasty mustard sauce.
Japanese Mustard is fast growing and can be harvested within 50 days. Like most mustards, Japanese Mustard is an excellent source of Vitamins C and K, and research has found that eating Mustard Greens can help prevent heart disease.
Another benefit of Mustard Lime Streaks is that it can be cut down as it dies off in late-Autumn and used as a nitrogen-rich green manure. Japanese Mustard is also known as Mustard Spinach, Japanese Yellow Mustard, Mustard Greens, Mizuna and Komatsuna.
Other Mustard varieties available are Tendergreen, Red Giant and Lime Streaks.
Growth
Japanese Mustard is a cold hardy vegetable that grows to 50 cm (20 inches). It requires moist, but well drained soil and prefers full sun, although tolerates some shade.
Most mustard greens are cool season annuals and can tolerate light frosts for short periods. Japanese Mustard can be harvested after 50 days from sowing. Space seedlings around 20cm apart.
As weather becomes too hot or cold, Mustards will turn to seed and start growing again when the temperatures suit.
Note: Germination instructions can be found in the ‘Germination Instructions Tab’ below. Upon purchase you will receive these detailed instructions via email so that you have a permanent record.
FAMILY:
Brassicaceae
CLIMATE:
Cold to Tropical
TEMPERATURE RANGE:
7 to 27°C / 45 to 80°F can withstand light frosts and hot temperatures for short periods.
SOIL TYPE:
Soil should be loose and well-draining.
LOCATION:
Full sun will tolerate some shade.
HEIGHT:
Up to 40 cm’s (16 inches) above ground
WIDTH:
Up to 15 cm’s (6 inches)
pH:
6.0-7.0
GROWTH TYPE:
Annual
WATER REQUIREMENTS:
Medium
POLLINATION:
Pollinated by Wind. Bees required to produce seed.
MATURITY:
Average 60-70 days
GERMINATION RATES:
96%
GERMINATION TIME:
10-14 days at temperatures between 10-23°C / 50-75°F
GERMINATION DIFFICULTY:
Easy
SEEDS PER GRAM:
Approximately 250
MEDICINAL QUALITIES:
Yes
WEED POTENTIAL:
No
EDIBLE:
Yes
SEED STORAGE & VIABILITY:
Cold Storage at 4°C (Fridge) up to 4 years.
FACTS ABOUT BRASSICA JUNCEA (Japanese Mustard)
For a sweeter taste, harvest Mustard leaves when temperatures are cooler.
Blend Mustard leaves with oil to make a mild-flavoured mustard sauce.
Mustards are part of the same plant family as Broccoli, Cabbage, Cauliflower and Kale.
Although often called Japanese Mustards, most mustards originate in China.
