Organic Broccoli Seeds - Calabrese


This healthy and vibrant late summer early autumn vegetable is high yielding and a pleasure to grow. Tasty and nutritious, Organic Broccoli Calabrese provides a long harvest of thick heads followed by a great crop of tender side shoots which if picked regularly will see you through to the late Autumn. Delicious in stir fry's, roasted or as a perfect accompaniment to any Autumn meal. Extremely nutritious, Organic Calabrese Broccoli is packed with carotenoids, folic acid and vitamins A and C. GMO-free and hand-picked for quality, our seeds are perfect for growing delicious, organic broccoli. Each compostable pack contains free marigold companion plant seeds to help you grow greener.


Broccoli Calabrese is a no fuss and easily grown cultivar which is incredibly rewarding. Tight and tasty green heads are produced throughout summer and  autumn giving you a continuous supply of this delicious superfood. Head size is determined by spacing so to impress your neighbors space seedlings around 60cms apart over the more common 40cm centers.

  • Pack size: 150 seeds
  • Time to germination: 5 - 10 days
  • When to sow: March - June
  • Spacing: 40 - 60cm
  • Soil preference: Rich, well-drained
  • Light preference: Full sun
  • When to harvest: July - November

How to grow Organic Broccoli from seed

Sow seeds between 1 and 1.5cm deep in biodegradable pots made from thin-wall coco fibre between late March and June and plant out four weeks later pot and all. We recommend sowing in our bio pots as broccoli does not like to be transplanted as suffers transplant shock. By sowing a few plants in late march, early May and again in Early June you can ensure a continual harvest of tasty heads. Broccoli Calabrese benefits from a sheltered position in full sun.

Should your Broccoli seedlings become leggy due to insufficient light, plant them out at a depth just below the second set of leaves. This will also help your plants establish a large root system.

What to feed your broccoli calabrese plants

Organic Calabrese Broccoli has a long growing season and should be planted in firm fertile soil. Amend the area before transplanting with a good mix of rotten farmyard manure, fish, blood and bone meal with some volcanic rock dust and kelp powder to give them a rich, balanced and diverse diet that will be released over the season for strong organic growth.

Stronger, healthier plants are also less attractive to attacking insects.

Keeping pests away

Broccoli can be affected by clubroot, aphids, downy mildew, and cabbage root fly. By practising good hygiene and airflow around the plant, leaving a low layer of weeds to grow around the stem to deter root fly, and interplanting with flowers or other species, these vectors are minimised, and you should have no problems growing this wonderful veg.

When ordering Organic Broccoli Calabrese seeds from Grow Sow Greener, you will receive free marigold seeds lose in your pack. A beautiful plant in its own right, plant marigolds close by to deter nematodes and attract beneficial insects that prey on pests while boosting pollination for your other fruit and veg.

Shipping & Delivery

Shipping & Delivery

Delivery Costs

UK, N.Ireland and Scotland:

- Spend over £45 for FREE UK delivery.

- £1.95 postage on unlimited packets of all small seed packs (excluding Microgreen Seeds and Sprouting Seeds)

- £4.90 postage on all Microgreen Seeds, Sprouting Seeds and all other equipment

- £6.85 postage on all orders of combined small seed packs and parcels under £45

Delivery Information

The prices quoted are for UK mainland addresses. Deliveries to parts of Scotland, the Scottish Highlands and Islands, the Channel Islands, the Isle of Man and the Isle of Wight may incur an additional postage cost to the customer. In such circumstances, we will contact customers to let them know of any additional cost and offer the choice of whether to proceed or cancel their order.

Whenever possible, goods will be dispatched by Courier post within 3-5 working days from the date of purchase. Due to our delivery being outsourced, we cannot always guarantee next day delivery, so please allow for this. Please bear in mind there may be delays when ordering over weekends and national holidays when placing your order. If an order is needed for a definite date, please contact us prior to ordering, so we can advise beforehand.

In the event that you select a business address, we shall be deemed to have delivered your order to its intended recipient by delivering it to the reception area of the business address.

We will deliver to the address as you enter it and can not accept any liability for late or failed delivery if the quoted address is incorrect. Additional charges will be made for redirection or for re-delivery due to postcode error. We advise that if you are not sure of the address you should check it using the Post Office postcode and address finding service.