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Articles about Vegetable Crops for the Garden

  Advantages of Container Vegetable Gardens
  Best Vegetable Crops for Containers
  Brandywine Tomatoes - Get the Most From This Heirloom Variety
  Choosing a Site For Your Home Vegetable Garden
  Container Vegetable Gardening Tips
  Container Vegetable Gardens
  Double Your Crops
  Getting Children Interested in Growing Vegetables
  Grow Your Own Salad
  Growing Tomatoes in Pots
  Growing Vegetable Plants Becomes More Than Just A Hobby
  How to Grow a Vegetable Garden
  Indoor Container Vegetable Gardening Ideas
  Indoor Vegetable Gardening How to Tips
  Learning About Indoor Container Vegetable Gardening
  List of vegetable crops by difficulty
  Mushroom Growing in Odd Unused Spaces
  Non Hybrid Seeds For Survival Gardening
  Organic Container Gardening - Simple and Easy Ways to Grow Vegetables and Flowers in Pots
  Organic Vegetable Cultivation Table
  Over Wintering Chilli Pepper Plants
  pH preferences of food crops
  Planning your Container Crops
  Planting Tomatoes Upside Down
  Potato Container Garden Tips
  Preparing a Vegetable Garden
  Review: Food4Wealth by Jonathan White
  Vegetable Container Garden Tips
  Vegetable Crops in alphabetical order by name
  Why I Recommend Vegetable Container Gardening
  Why Vegetable Container Gardening is Getting More Popular Today Than Ever
  How to grow organic Asparagus
  How to grow organic Aubergines
  How to grow organic Beetroot
  How to grow organic Broad beans
  How to grow organic Broccoli
  How to grow organic Brussels sprouts
  How to grow organic Cabbage
  How to grow organic Calabrese
  How to grow organic Carrot
  How to grow organic Cauliflower
  How to grow organic Celeriac
  How to grow organic Celery
  How to grow organic Celtuce
  How to grow organic Chinese broccoli
  How to grow organic Chinese cabbage
  How to grow organic Chicory
  How to grow organic Corn
  How to grow organic Cucumbers and Gherkins
  How to grow organic Endive
  How to grow organic Florence fennel
  How to grow organic French beans
  How to grow organic Garlic
  How to grow organic Globe artichokes
  How to grow organic Jerusalem artichokes
  How to grow organic Kale and borecole
  How to grow organic Kohl rabi
  How to grow organic Komatsuna
  How to grow organic Land cress
  How to grow organic Leaf beet
  How to grow organic Leeks
  How to grow organic Lettuce
  How to grow organic Mizuna
  How to grow organic Mustard greens
  How to grow organic New Zealand spinach
  How to grow organic Onions
  How to grow organic Parsnips and Hamburg Parsley
  How to grow organic Peas
  How to grow organic Peppers (hot and sweet)
  How to grow organic Potatoes
  How to grow organic Radishes
  How to grow organic Rocket
  How to grow organic Runner beans
  How to grow organic Salad onions
  How to grow organic Salsify, Scorzonera and Scolymus
  How to grow organic Seakale
  How to grow organic Shallots
  How to grow organic Spinach
  How to grow organic Squash
  How to grow organic Swede
  How to grow organic Texsel greens
  How to grow organic Tomatoes
  How to grow organic Turnips




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Organic Gardening:


How to grow organic Komatsuna


by

Komatsuna or Mustard spinach
Komatsuna or Mustard spinach
courtesy of Central Coast Gardening
with grateful thanks


Komatsuna (Mustard spinach)

Brassica rapa Perviridis group

Family: Cruciferae (Group 2)

Komatsuna are a very diverse group of large leaved brassicas which, strangely enough, are more closely related to turnips than to the other leafy brassicas. Fully grown leaves can be anything up to 30cm by 18cm (12"x7"), although they can be harvested at any stage from young seedlings to large plants. The flavour and texture are more like European than Chinese cabbage, but slightly spinachy. Young leaves (or shredded older ones) can be used in salads, otherwise komatsuna are cooked and used as a green vegetable.

Komatsuna are hardy plants, very vigorous and adaptable They cope well with both high and low temperatures and are also more tolerant of drought than most oriental brassicas. Although they are capable of surviving most winters outdoors, you will get better quality plants by growing them under cover in winter, where they will continue to grow in sunny weather.

Site and soil

Recommended cultivars

All Top, Komatsuna, Tendergreen

Choose an open, unshaded site with fertile, well-drained and moisture retentive soil, which should be slightly acid (min pH 5.4, but see note on clubroot - add lime if necessary to adjust pH). Brassicas have a high nitrogen requirement and also need very firm soil. To ensure sufficient nutrient levels, it is best to topdress or apply a liquid feed such as seaweed fertiiser during growth.

Because brassicas are prone to soil infections, for example, Clubroot, it's important to use a minimum 3 year rotation plan.

Mature and semi-mature crop

Sow successionally 2.5cm (1") deep from June to August, either in modules or direct. Spacing varies according to cultivar and final size required, from 5cm (2") apart for harvest very young to 17-20cm (10-12") to harvest large. Harvest by cutting individual leaves and allow plants to continue growing.

Note on clubroot

Soil may remain infected for 20 years; steps to avoid introduction include:

  • good drainage
  • rotation
  • liming acid soils to a pH around 7
  • working in high levels of organic matter
  • ensuring clean plants are used - source must be known to be free of disease (best grown at home in sterile medium)
  • boots and tools used on infected land must be thoroughly cleaned before use on clean land

Once infected avoid growing any brassicas except fast maturing types such as Texsel greens or cut and come again oriental seedlings. If you have no other land available, and you must grow types with a lengthy growing season, you can try sowing seed in modules, and potting up until the plants reach a height of 10cm (4") before planting out. A root drench may also help.



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Article ©2004 Frann Leach. All rights reserved.

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