Thompson & Morgan
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Cabbage 'Summer Jewel'

Brassica oleracea

Hardy Annual

  • New Breeding in 'summer/autumn greens'
  • Partner with Winter Jewel F1 for year-round harvests
  • Loose leafy habit, perfect for shredding
The perfect partner to Winter Jewel F1 for year-round quality greens. Cabbage Summer Jewel F1 represents new breeding in heat resistant leafy greens. This summer cabbage is very slow to heart, remaining leafy at 350g for big harvests of compact 30cm leaves. The smooth, dark green leaves carry no stalk, leading to quicker prep and less wastage in the kitchen, Cook as traditional 'greens' or shred for use in salads, stir fries and soups

Ideal For:
kitchen garden
Sowing Months:
April, May
Position:
full sun
    • 1 packet (45 cabbage seeds)

    •  
    • Despatch: by Monday
    • £2.49

Sow summer cabbage indoors seed from February to May. Alternatively direct sow outdoors from late March into a well prepared seedbed, for transplanting to their final positions later on. Sow at a depth of 13mm (½") and distance of 23cm (9") between rows.

Indoors, sow seed at a depth of 12mm (½") in trays of free-draining, seed sowing compost and cover with a layer of vermiculite. Place in a propagator or seal container inside a plastic bag at a temperature of 20-25C (68-77F) until germination which takes 4 -7 days. Once germinated, grow Cabbage plants on in cooler conditions until all risk of frost has passed and plants are large enough to be transplanted with 2-3 true leaves.

Gradually acclimatise them to outdoor conditions over 7 - 10 days before planting cabbage in moist, rich, well drained soil in full sun. A fertile soil is essential as cabbages require high levels of nitrogen. Prepare the soil in early spring by adding plenty of well rotted farmyard manure to the soil to improve its structure and fertility. Apply lime to acid soils to reduce the acidity and lessen the risk of clubroot. Plant cabbages at a distance of 50cm (20") apart and cover with a protective netting or fleece to prevent attack from birds and insects. Place a collar around the stem of each plant to prevent cabbage root fly attacks. Water the plants thoroughly after planting.

Water cabbages regularly, particularly during dry periods. Feed throughout the growing season with a high nitrogen feed. Hoe between plants regularly to prevent weeds from establishing and bring insect larvae to the surface. Draw earth up around the base of each stem to prevent wind rock and improve the plants stability. Harvest Summer Cabbages from late June once the heads have matured. Culinary note: Vitamin rich cabbages are particularly high in iron and potassium, but also low in calories.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.


Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

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