Growing Romanesco Broccoli | How to Grow Romanesco

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Learning all about Growing Romanesco Broccoli can be a rewarding experience! Here’s all you need to know about cultivating this veggie!

Growing Romanesco Broccoli
Also popular as Broccoli Apple, this Mediterranean plant forms a major part of Italian cuisine. If you too want to enjoy this exotic veggie fresh in your salads, then here’s everything about Growing Romanesco Broccoli.
USDA Zones — 3 – 11
Other Names — Brassica oleracea botrytis (Latin name), Romanesco broccoli Romanesco Cauliflower, Romanesque cauliflower, Buzzy Broc
Check out our article on growing broccoli in pots here

Romanesco Broccoli Information

Romanesco Broccoli is a type of Brassica that was first grown via selective breeding around the fifteenth century in Italy. The plant is also believed to be a cross between broccoli and cauliflower. It has a mild flavor, which makes it perfect for salads and sandwiches. 
Want to grow broccoli sprouts? Click here

Propagating Romanesco Broccoli 


You can easily grow this plant with seeds.

  • Plant seeds 4-6 weeks before the last average frost date in your region
  • Sow seeds in a well-draining potting mix.  
  • When the seedlings grow up to 10-12 cm, transplant them to the garden or continue to grow them in a container that’s at least 10-12 inches wide.
  • Put the pot in a location that enjoys bright but indirect sunlight in an area. 
  • Keep the soil evenly moist and not soggy. 

Note: If you are looking forward to having a fall or winter harvest, transplant the seedlings in the garden in summer. For regions with mild winter, you can plant it in the fall.

Best Companion Plants for Romanesco Broccoli

Dill, artichokes, chard, beet, carrot, celery, cucumber, spinach, beans, oregano, peas, potatoes, sage, and thyme are some of the best plants you can grow with it.

Want your Rhubarb to flower? Click here 

Requirements for Growing Romanesco Broccoli

Growing Romanesco Broccoli 2

Location / Light

For best growth and size, locate the plant where it gets at least 3-5 hours of bright and direct sunlight every day. Growing it in a shaded location will result in small broccoli.

If you live in a warm climate, protect it from the long exposure to harsh afternoon sun. This will help the plant avoid bolting. 


Romanesco Broccoli loves rich loamy soil full of organic matter with good drainage. It will grow the best between a pH range of 6.0-6.8. The plant also requires a bit of acidity.
Adding a bit of lime or leaf mulch into the growing medium will do wonders. 


This plant likes evenly and consistently moist soil, but not wet or soggy. Also, it is best to water the veggie from the base and not overhead to prevent root rot.
Add a layer of mulch to help retain moisture in the soil. Also, never let the growing medium go dry completely. 

Romanesco Broccoli Care



Add compost to the soil before sowing to improve the drainage and nutrient content. Also, side-dress with aged manure during the time of planting.

Using a balanced liquid fertilizer, diluted to 1/2 of its strength, once in 2-3 weeks will be good enough as well.


Typically, pruning is not necessary for the veggie, but you should regularly get rid of any diseased or damaged stems before they can cause any harm to the whole plant. 

Pests and Diseases

Romanesco broccoli is prone to cutworms, cabbage loopers, and cabbage worms. Use a strong jet of water to get rid of them.
In diseases, lookout for clubroot and downy mildew. Pick disease-resistant varieties and provide proper air circulation between plants. 

Find out the best broccoli varieties here

Harvesting and Storing Romanesco Broccoli

Growing Romanesco Broccoli 3
The heads are ready for harvest in Autumn from September, 80-100 days from the date of sowing the seeds. Wait until the heads are large or you can pick the smaller ones for a soft and even milder taste. 
It is best to eat romanesco broccoli as fresh as possible. It can be blanched, sautéed, and roasted. You can store the veggie for 1-2 weeks in a cool larder or refrigerator.
Check the flowers that are vegetables here

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