Veg cauliflower seeds sow grow harvest Ireland

Cauliflower Seeds (All Year Round)

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Cauliflower Seeds Sowing Instructions:

In recent times, cauliflower has become a popular and healthy substitute for several foods. This versatile veg has been used to create everything, from rice to pizza to even cauliflower bagels. While it’s not the easiest veg to grow, it is definitely worth the challenge, especially as you can grow green and purple varieties that you won’t usually find in your local supermarket.


March to April


July to October


  • Dig in some well-rotted manure or apply a general fertiliser a week before sowing.
  • Do not grow cauliflower anywhere that you have grown any member of the cabbage family the previous year (cabbage, broccoli, cauliflower, Brussels sprouts, kohlrabi, collards and kale). The best way to manage all these veg is to create a crop rotation scheme prior to growing.
  • Cauliflower varieties have been bred that mature at different times of the year. If you live in a mild coastal area you could grow cauliflower throughout the year, if you grew a range of varieties. The most straightforward types to grow are the summer and autumn varieties.
  • Sow seeds in module trays in March and April, 1.5cm deep.


  • Transplant when they are around 12-15cm high. Space plants at 60cm apart both ways.
  • Keep plants free of weeds and water if the soil dries out.
  • You can protect young, developing curds (cauliflower heads) from sun and frost damage by folding some of the surrounding leaves over the curd.


  • Harvest while curds are white, green or purple (depending on your chosen variety), packed firm and tight.
  • Cut the head from the stem with a sharp knife.

Visit the GIY Veg directory for more growing details and tips.


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