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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 Kale and borecole


by

Curly kale
I love curly kale with lots of gravy

Kale and borecole

Brassica oleracea Acephala group

Family: Cruciferae (Group 2)

Kale, a term which also includes borecole and rape kale, is the hardiest of all brassicas, resistant to clubroot and cabbage root fly, and rarely attacked by birds. It also tastes pretty good, whether as a green vegetable, an addition to the salad bowl, or as an ingredient in stir-fries.

Chinese kale is a different plant, dealt with on a separate page.

Kale does best in rich, well-cultivated, well drained soil. However, being such a tough beast, it can cope with almost any situation you throw at it.

Site and soil

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 fertiliser during growth.

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

Cultivation

Recommended cultivars

Dwarf green curled, Pentland Brig.

Sow in a seed bed unless soil is heavy, in which case use seed trays or modules to minimise root disturbance. Sow 2-2.5cm (¾-1") deep, spacing 7.5cm (3") apart in the row. Transplant at about 10cm (4") tall or when the first true leaves develop to follow legumes or onto a site which was manured the previous Autumn.

On light soils, plant into drills 8cm (3") wide by 10cm (4") deep and earth the plants up as they develop until the soil is level, otherwise on the flat. Plant firmly enough that pulling on a leaf results in it tearing. Use brassica collars to prevent root fly.

Sow late April to May 2.5cm (1") deep in 15cm (6") rows. Thin to 10cm (4") apart.

Transplant 6-8 weeks later in July, planting firmly, spacing dwarf varieties 45cm each way (18"x18") and others 60-85cm (24-30") each way.

Water after transplanting and daily in dry weather for 3-4 weeks, about ¼ pint per plant.

Hoe to keep weed free. Mulch to conserve moisture and suppress weeds. Catch crops may be sown between rows early on, eg. radishes, lettuces, seedling salad crops.

Water up to 4 gallons per sq yard per week in dry weather. The minimum watering requirement is a single heavy watering 10-20 days before maturity.

Harvest from November to April. The flavour improves after frost.

Pests

Whitefly are the only serious pest. Fatty acid or derris sprays are the best treatment. Crop covers only exacerbate the problem.

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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