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A picture of a Green cauliflower

Green cauliflower

Brassica oleracea f. Green cauliflower

Also known as


Cauliflower romanesco by en.wikipedia (CC-BY-SA-3.0)

Full Sun
Moderate care
Moderate watering


RHS hardiness


Minimum temperature

Expected size









  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Green cauliflower Overview

Green cauliflower is a form of Brassica oleracea. It is a cool-season crop and a member of the cabbage family, Brassicaceae. Green cauliflower is one of two plants that are known as Broccoflower. The other is Romanesco broccoli, both forms are natural occurring crosses of broccoli and cauliflowers.

Common problems with Green cauliflower

Flea beetles, gall weevil Also affected by blight.

Green cauliflower Companion Plants

How to harvest Green cauliflower

The central head will be ready for picking within 50-100 days of planting out the seedlings. Harvest when the head is fully developed but still compact. Cut off central head along with 15 cm of stem so that the plant will produce smaller shoots, which can then also be harvested.

How to propagate Green cauliflower


Start seeds indoors 8 weeks before transplanting or sow directly from spring to midsummer, 10-12 mm deep and 45 cm apart. Germination takes 10-12 days. Transplant indoor seeds after 2-4 leaves.

Special features of Green cauliflower

Crop rotation

Romanesco is a heavy feeder and needs plenty of nutrients. Rotate crops more often than once every four years to reduce the risk of club root infestation.

Repels harmful insects

Broccoli left in the soil will deter nematodes.

Other uses of Green cauliflower



Flower heads are edible steamed or boiled.


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