Calabrese F1 Ironman Brassica Oleracea var. Italica Seeds

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Superb vigorous variety, that yields dome-shaped, blue-green heads with fine beads. Produces few hollow stems in dry, stressed conditions and has tolerance to crown rot, fusarium and downy mildew. Holds well in the garden.

Pretty Wild Seeds are registered with the Department for Environment, Food & Rural Affairs (DEFRA) under number 7529, so you can have confidence in both our products and advice. Although our products are listed in weights and acres, we can supply in additional quantities upon enquiry so if you need a larger supply, please don't hesitate to give us a call.


  • 20 seeds for £2.55
  • 50 seeds for £3.99
  • 100 seeds for £6.99
  • Quantities from: £2.55

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    The Calabrese F1 Ironman Brassica Oleracea var. Italica Seeds is shown in Vegetable, Herb & Fruit Seeds > Vegetables.

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    We happily accept returns within 14 days from date of delivery. All returns must be received in the same condition and packaging we sent them. Postage charges will not be refunded on unwanted products.

    You are solely responsible for ensuring the goods are returned to us. We will not be liable for returns that are lost in the post or lost for any other reason. If a product arrives damaged we will advise the customer how to return the item with all return costs covered by us.  Replacements & refunds will be dispatched / issued on receipt of the returned items only.

    Sow indoors, January-February, 0.5cm (¼") deep, in a tray of compost. Water well and place in a cold frame or unheated greenhouse. Keep moist. Seedlings usually appear in 14-28 days. Transplant 5cm (2") apart to other trays, when large enough to handle. Gradually accustom young plants to outside conditions before planting out, March-April, into well-cultivated, fertile soil. Or sow outdoors: sow thinly, March-June, in a seed bed, 1.5cm (½") deep, directly into finely-prepared, well-cultivated, fertile soil, which has already been watered. Transplant 45cm (18") apart when plants are about 10cm (4") tall. Allow 60cm (2') between rows. Plant firmly and water well. Sow successionally for continuous crops. Harvest: June-November.