Romanesco Cauliflower Seeds


This packet sows up to 160 feet.
4.6 out of 5 stars
(5 reviews)
Availability: In Stock
Is it art or food? Both! 'Romanesco' is not actually a cauliflower, but somewhere between a broccoli and cauliflower, with 5"-6" heads. First noted by Italians in the 16th century, it is now catching the eyes of gourmet chefs. Cooked, 'Romanesco' has a delicious nutty flavor and a texture similar to cauliflower. Easier to grow for fall harvest as a warm spring may delay heads until fall.
$1.99 1 gram (~240 seeds)

Botanical Name: Brassica oleracea var. botrytis

Days to Maturity: 75–100 days

Family: Brassicaceae

Native: Europe

Hardiness: Frost-tolerant biennial grown as an annual

Plant Dimensions: 36" tall, 24" wide

Variety Information: An old, reliable European heirloom introduced in 1890. Large plant with blue green leaves and a 5"–6" lime green central head composed of many smaller spiraling florets.

Attributes: Good for Containers

When to Sow Outside: Not recommended. 1 to 2 weeks before your average last frost date, or 10 to 12 weeks before your average first fall frost date. In Mild Climates, sow in early fall for winter harvest.

When to Start Inside: RECOMMENDED. 4 to 6 weeks before transplanting outside after your average last frost date, or 12 weeks before your average first fall frost date. In mild climates, sow in fall for harvest in late winter and early spring. Ideal soil temperature for germination is 70°–85°F, cooler (60°F) growing temperatures thereafter.

Days to Emerge: 8–10 days

Seed Depth: ¼"

Seed Spacing: A group of 3 seeds every 24"

Row Spacing: 24"–36"

Thinning: When 2" tall, thin to 1 every 24"

Harvesting: Harvest heads as soon as they have developed. Head should be firm and solid. Cut at the base where it connects with the stem using a sharp knife. Remove entire plant after harvest since romanesco rarely produces side shoots like true broccoli. Harvest in the morning if possible. If harvested in the heat, dunk in ice water to reduce "field heat" and increase storage time. Allow to drain before storing.

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Romanesco Cauliflower Seeds Reviews

5 reviews


5 out of 5 stars Jan 27, 2020
Every seed sprouted and is still doing well!
Katie Tracy from FL

Excited to see it produce the head

5 out of 5 stars Jan 26, 2021
seeds germinated rather quickly and I have my plant in a large container. It's growing very fast, and I'm excited to see it head. The fractal like heads are very fascinating! It is supposed to taste like broccoli and cauliflower.
anonymous from AL


5 out of 5 stars Dec 10, 2021
Very pretty , hardy plant. Easily grown in containers. I won't go another growing season without them in my yard.
Laura from MA

Devastated by caterpillars

3 out of 5 stars Feb 5, 2022
I can't really rate these because (despite being grown on a second-story deck...in a container...) they were somehow completely overcome by little green caterpillars. They ate every leaf right up the stems -- the main stems kept growing somehow, but we definitely didn't get any food from it.
E from MD
Owner Response: Hi E, We are sorry you had pest issues with this product however, it sounds like the seeds performed well, they just needed protection from common pests. You can find organic pest tips inside the seed packets and in articles on our website. We recommend coving this crop with row cover to exclude pests like the caterpillars you experience. You can also handpick off the pests and use Bt, an organic bacterial control for caterpillars. Left to multiply and consume the crop they will eat all they can meanwhile causing stress and reducing or eliminating the harvest. Please don't hesitate to contact us for help identifying and mitigating pests.


5 out of 5 stars Jun 12, 2022
This plant is the closest thing I have grown that meets the criteria of a fractal! Absolutely fascinating as well as delicious.
Abbie from ME

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