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Mibuna - Ferme de Ste Marthe untreated seeds

Brassica campestris narinosa
Japanese greens

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This plant carries a 6 months recovery warranty

More information

Mibuna is a cold-resistant and productive Japanese green vegetable that produces chicory-like rosettes of narrow, dark green leaves with a distinctive peppery, mustard flavour. Perfect eaten raw as baby salad greens or lightly cooked in a stir-fry. Sow in February-March and September-October for regular harvests from April to November.
Ease of cultivation
Beginner
Height at maturity
20 cm
Spread at maturity
20 cm
Soil moisture
Damp soil
Germination time (days)
14 days
Sowing method
Direct sowing, Sowing under cover, Sowing under cover with heat
Sowing period February to March, September to October
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Harvest time April to November
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Description

Mibuna is a cold-resistant and productive Japanese green vegetable that produces chicory-like rosettes of narrow, dark green leaves with a distinctive peppery, mustard flavour. Perfect eaten raw as baby salad greens or lightly cooked in a stir-fry. Sow in February-March and September-October for regular harvests from April to November.

Mibuna is a biennial plantgrown as an annual. It is remarkably healthy thanks to its high vitamin A, K and C content. It is also a good source of fibre and minerals such as calcium and potassium.

Mibuna is very easy to grow, being both vigorous and cold-resistant. Ideal for winter crops! It requires deep, rich soil, regular watering and plenty of sun.

Harvest: Harvest the leaves as and when required by cutting them off at ground level. If the plant is well established, it will continue putting out new leaves for several months.

Storage: Mibuna will keep for several days in the refrigerator.

Good to know: Mulching with grass clippings or dead leaves will help keep the soil moist whilst limiting weed growth.

Even if the vegetable garden is first and foremost a place for growing great quality veg, it’s always a good idea to leave a bit of room for flowers. Growing flowers alongside your vegetable plants will make your general gardening experience more enjoyable and is a great way to attract pollinators and repel garden pests! Flowers such as gaillardia, marigolds, zinnias, cosmos or nasturtiums can be sown in and around the rows of vegetables. Herbs such as dill can be very useful also. Bear in mind that some companion plants self-seed easily and can be a bit invasive (borage, chives, lemon balm etc.)

NB. Untreated seeds are produced from conventionally grown plants (that are often treated with phytosanitary products); however they do not undergo any post-harvest treatment. These seeds are approved for organic market gardening when organic seeds are not available.

Harvest

Harvest time April to November
Type of vegetable Leaf vegetable
Vegetable colour green
Size of vegetable Medium
Interest Flavour, Nutritional value, Productive
Flavour spicy
Use Cooking

Plant habit

Height at maturity 20 cm
Spread at maturity 20 cm
Growth rate normal

Foliage

Foliage persistence Annual
Foliage colour dark green

Botanical data

Genus

Brassica

Species

campestris

Cultivar

narinosa

Family

Brassicaceae

Other common names

Japanese greens

Origin

Cultivar or hybrid

Annual / Perennial

Annual

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Planting and care

Semis :

Période de semis : en pleine terre en février/mars et septembre/octobre

Vous pouvez procéder par semis direct en place ou préparer des plants qui seront ensuite installés au jardin à leur place définitive.

Préparation de plants : Sous abri ou en pépinière au jardin le reste de l’année (suivant la période de semis préconisée), semez les graines à une profondeur d’ 1 à 2 cm dans un bon terreau pour semis ou une terre bien fine. Couvrez légèrement avec du terreau et n’oubliez pas de maintenir le substrat humide mais non détrempé.

Lorsque les jeunes plants vous apparaissent assez forts pour être manipulés, repiquez-les en godets si nécessaire avant de les transplanter au jardin, lorsqu’aucune gelée n’est plus à craindre. Lors de la plantation, respectez les espacements préconisés pour le semis direct.

Semis direct : En terre correctement amendée et finement travaillée, tracez des sillons d’une profondeur d’un ou deux centimètres, espacés de 20 centimètres. Semez les graines et recouvrez-les d’une fine couche de terre fine. Lorsque les plantules sont bien développées, procédez à un éclaircissage en ne conservant qu’un plant tous les 20 cm environ.

 

Culture :

Le Chou asiatique se cultive au soleil. C’est un légume gourmand, qui réclame une terre bien fumée, riche en azote et en potasse. Il convient d’effectuer, de préférence à l’automne, un généreux apport de compost mûr (environ 3/4 kg par m2), par griffage sur une profondeur de 5 cm, après avoir, comme pour toute culture potagère, bien décompacté le sol. Il n’est pas très tolérant quant au PH du sol qui devra se situer entre 5,6 et 6,5. En terre acide, il faudra veiller à relever progressivement ce PH en faisant des apports calciques sous forme de Dolomie ou de Chaux.

Méfiez-vous des ravageurs comme la Piéride du Chou ou les Altises et prévoyez l’installation d’un voile anti-insecte.

Seedlings

Sowing period February to March, September to October
Sowing method Direct sowing, Sowing under cover, Sowing under cover with heat
Germination time (days) 14 days

Care

Soil moisture Wet
Disease resistance Good
Pruning No pruning necessary

Intended location

Type of use Vegetable garden
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Exposure Sun
Soil pH Neutral
Soil type Silty-loamy (rich and light), 192

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