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romanesco broccoli seeds for planting

Romanesco Broccoli Seeds For Planting (Brassica oleracea)

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350 Seeds Per Pack

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Grow a garden filled with the strange, yet unique, Romanesco Broccoli, from freshly harvested Brassica oleracea seeds. Romanesco is an Italian heirloom and has been enjoyed for years, since the 16th century. The heads display apple-green, whorled pinnacles on 7 inch heads. The plants themselves can easily spread 3 feet wide, and grow to a mature height of about 2 or 3 feet tall. Romanesco boasts a mild, yet nutty flavoring and is often eaten raw, or cooked.

Romanesco Broccoli is categorized as an annual crop. Annuals such as this will grow quickly from freshly harvested seeds, producing flowers, fruits and seeds all within a single season. Romanesco is just one variety of Broccoli that we have to offer. check out our Broccoli seed category for additional varieties. You may also be interested in our Purple Cauliflower variety as well.


Romanesco Broccoli is a cool weather crop that can be started indoors, or directly outdoors. If started indoors, sow in starter pots, 4 to 6 weeks prior to the last frost. If started outdoors in the Spring, sow just before the last frost, or in mid-summer, for a fall harvest. Till your sowing area, removing all unwanted plant life and weeds. Sow the seeds at a depth of 1/4” under, in rows measured about 10’ long.


Broccoli will grow in an area that receives full sunlight for at least 6 hours daily. The plants will bolt and go to seed if temperatures are too high. the soil should be fertile and rich in organic matter, but also well drained. To improve drainage, we recommend adding a light compost to areas containing hard, compact soil. Water daily to ensure that the seeds receive enough moisture to germinate properly.


Broccoli seeds typically germinate within 7 to 14 days after sowing. The plants will grow 2 to 3 feet tall, spreading about 12 inches wide. They can be spaced 18 to 24 inches apart from one another, in rows spaced 24 inches apart. Romanesco will produce 5 to 6 inch, spiraled, lime green heads that boast a better flavoring than most finer Broccoli’s available. They are ready for harvesting in roughly 75 to 100 days.

Romanesco Broccoli will be ready for harvesting in roughly 100 days. Cut the head from the base and store in the fridge or in a cool part of the home. You can save the florets by freezing as well.

Front Side

Seed packets by Seed Needs are beautifully illustrated and provide a colorful depiction of the variety inside. We provide the common name, as well as the scientific name, seed quantity and a few specs about the variety to be grown.

Back Side

Each packet contains full growing instructions on the reverse side. Specifications on sowing the seed, growing conditions such as sunlight and moisture preferences and germination and growth information can be found as well. We also provide a QR to scan for easy reordering.

  • Always Non-GMO / Untreated.
  • Stored in a temperature controlled facility that's free of moisture.
  • Always packaged for the current and the following growing seasons.
  • True to the varieties advertised.
  • 99% pure seed with no added fillers.

  • Always Non-GMO / Untreated.
  • Stored in a temperature controlled facility that's free of moisture.
  • Always packaged for the current and the following growing seasons.
  • True to the varieties advertised.
  • 99% pure seed with no added fillers.

Always fresh and intended for the current and following growing seasons. Seeds are packaged in water resistant / tear resistant packaging.

Heirlooms are varieties that have been purposely bred, selected and passed down from generation to generation. They are wholesome picks that will breed true to the parent seed every time.

Seed Needs never knowingly purchases treated seeds products. We also do not treat any of our seed products with substances such as neonicotinoid or thyram.

Seed Needs promises to never knowingly purchase or supply genetically modified seed products. We take the Safe Seed Pledge!


Seed Needs has been providing gardeners with quality seed products since 2010 and has shipped millions of packets to happy customers all over the US. We offer flowers, herbs, vegetables, vines, wildflower blends, seed packet collections and seed packet favors.

With the success of our brand, we have kept our promise to continually donate to different organizations and personally sponsor children all over the globe each and every month. We grew our sponsorships from just 1 child to over 100 children worldwide in only a few years. We would like to sincerely thank all who support us because it wouldn't be possible without you!

Check out our charitable contributions!

St. Jude Children's Hospital | ASPCA | Our Kids

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