Giant Red Mustard

Brassica juncea 'Red Frills'

Cabbage Leaf Mustard, Leaf Mustard, Blaarmosterd, Rooimosterd, Mosterdkool (Afr.)

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This vigorous rosette forming annual has upright bright green stems with edible deeply lobed maroon leaves. Yellow flowers are produced in summer. Leaves have a strongly pungent smell.
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Planning

Difficulty

Easy

Flowering time

Summer

Fruiting time

Summer, Spring

Harvesting

Harvest leaves 45-55 days after germination when the entire plant is 30-45cm tall. For baby greens, cut when leaves are approx 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

Seed

Grow in warm, fertile, well-drained soil in alkaline or neutral soil in full sun. Sow seed in situ in spring or start under glass in early spring. Planting in midsummer in hot weather may cause early bolting.

Special features

Attracts useful insects

Bees

Special features

Origin

Probably first domesticated in central Asia, it has been cultivated in Asia and Europe for thousands of years.

Natural climate

Mediterranean

Environment

Light

Full Sun

Soil moisture

Moist

Soil type

Clay, Loam, Sand

Soil PH preference

Neutral, Alkaline

Frost hardiness

Hardy

Uses

Edible

Leaves can be eaten fresh or cooked like spinach.

Medicinal

Good source of vitamins, minerals and fibre.

Notes

Medicinal. Culinary. Ornamental.

Personality

Family

Brassicaceae

Flower colour

Yellow

Scent

Mild

Problems

Cabbage worms and aphids feed on the leaves. Wash these pests away with a blast of water. Mustard is susceptible to white rust. Remove leaves that have white rust. Water plants at the base of the stem keeping moisture off the leaves.Clubroot attacks the roots. Rotate so that mustard greens do no stay in the same area for more than 2 years.

Related Problems

Companion plants

English Peas, Snap Peas
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Knowledge and advice

Search our ever-growing knowledge base to find plants and information. Find out about pests and diseases you should be keeping an eye out for. Watch How to videos or follow step by step guides for tasks in the garden. Free download for your phone or tablet.
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