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Brassica juncea 'Red Giant' (Chinese mustard 'Red Giant')

Other names: Mustard greens 'Red Giant', Leaf mustard 'Red Giant', Rai 'Red Giant', Kai choy 'Red Giant', Brassica juncea 'Japanese Red Giant', Brassica juncea 'Japanese Giant Red'

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Variety or Cultivar
'Red Giant' is a vigorous, rosette-forming annual with upright, bright green stems bearing edible, elliptic to obovate, wrinkled, reddish-purple leaves and upright stems bearing racemes of yellow flowers in summer.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
0.45 m 0.45 m 1 year
1 ft 1 ft 1 year

Where to grow

Soil type
  • Chalky
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Alkaline
  • Neutral
Sunlight
  • Full Sun
Aspect
  • West
  • South
Exposure
  • Sheltered

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Additional plant details

Cultivation

Grow in warm, fertile, well-drained, neutral to alkaline soil in full sun. Water regularly throughout the growing season.

Suggested uses

Flavouring food and drinks, Add to salads, Indoor

UK hardiness

H5

USDA zones

Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9, Zone 10, Zone 11

Sunset zone

A1, A2, A3, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Upright, Rosette

Native to

Garden origin

Drought tolerant

No

Flood tolerant

No

Fragrance

The leaves are strongly pungent and are frequently mixed with these milder greens in a dish of "mixed greens".

Toxicity

Not toxic

Plant care

Pruning

Harvest leaves 40-50 days after germination when the entire plant is 30-45cm tall. For baby greens, cut when leaves are approximately 1.5cm long. Smaller & younger leaves tend to be milder than mature leaves. Leaves are hotter in soil that is too dry or poor.

Propagation methods

Seed

Propagation

Leaf harvest is dependent upon when seed is sown. Sow seed in situ in spring or start under glass in early spring. Planting in midsummer in hot weather may cause early bolting.

Pests

Diseases

Hoe around crops

Sow seeds thinly in a row

Dig next year's bed over in autumn adding manure or compost

Add lime to acid soil

Other plants

Plants in this Genus (0)

Brassica

Companion plants (0)

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