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Last edited by shiny on 8 Nov 2026. View history

broccoli Broccoli

Brassica oleracea Brassica oleracea Italica group WD Brassica oleracea var. botrytis
Also known as brocoli (EN) broccolli (EN)

A variety of Brassica oleracea

How to sow broccoli: Sow seeds indoors and transplant outside

Sun requirement for broccoli: Plant in Full Sun

Broccoli has large flower heads known as "crowns" that are green to blue-green in color, grouped tightly together atop a thick stem, and surrounded by leaves. Broccoli resembles cauliflower, a different cultivar in its species. It thrives in cool weather.

87
plantings
33
harvests
10
seed packets
Growstuff is a free, community-run site for people who grow food. Keep track of what you plant and harvest, find seeds to swap, and see what is growing near you. Join to record your own broccoli.

Broccoli facts

Lifespan

Annual living and reproducing in a single year or less
17 weeks median lifespan

First harvest expected

16 weeks after planting

Last harvest expected

19 weeks after planting

Height × spread

75cm × 60cm

Row Spacing

40cm

Germination

7–14 days median of members' seed packets

Days until maturity

70–95 days median of members' seed packets

When to sow

Southern hemisphere Sep–May
Northern hemisphere Mar–Nov
median of members' seed packets

Growing Degree Days

0

Grown for

flower harvested 27 times
What are growing degree days?

A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.

Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.

Broccoli needs about 0 growing degree days.

For broccoli, the FAO EcoCrop database gives a lowest growing temperature of 5°C and a shortest growing cycle of 60 days at its best temperature, about 750 growing degree days to a first harvest.

Where you've told us where your garden is, we use this and the weather there to predict when your broccoli will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.

Growing broccoli

  1. Sow seeds in trays 5 weeks before planting out
  2. Dig compost into the bed 1 week before planting out
  3. Harden off the seedlings 1 week before planting out
  4. Net against cabbage white butterflies at planting out
  5. Set or refill beer traps for slugs and snails at planting out every week
  6. Water regularly at planting out every week
  7. Check leaves for caterpillars 2 weeks after planting out every week
  8. Feed with a nitrogen fertiliser 4 weeks after planting out
  9. Cut the main head while the buds are tight at first harvest
  10. Pick the side shoots 1 week after first harvest every week
  11. Pull out finished plants 8 weeks after first harvest

How members grow broccoli

Sunniness

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Planted from

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Harvested for

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Varieties of broccoli

Image of de Cicco broccoli

de Cicco broccoli

Brassica oleracea
Image of Early purple sprouting broccoli

Early purple sprouting broccoli

Brassica oleracea italica
Image of Romanesco broccoli

Romanesco broccoli

Brassica oleracea Botrytis group
Image of sprouting broccoli summer purple

sprouting broccoli summer purple

Brassica oleracea italica

Plant broccoli with

Photos

Broccoli crops

Broccoli plantings

IMG_20190526_150739
IMG_20190526_150739
by shiny
IMG_20190526_150737
IMG_20190526_150737
by shiny
20210126_123533
20210126_123533
by shiny
IMG_20201001_164357
IMG_20201001_164357
by cas3y

Broccoli harvests

broccoli_7Dii3584
broccoli_7Dii3584
by cropbot
Romanesco
Romanesco
by cropbot
Fractal cauliflower
Fractal cauliflower
by cropbot
romanesco
romanesco
by cropbot
20201003_164542
20201003_164542
by shiny

Broccoli seeds

Video

Where broccoli grow

Only plantings by members who have set their locations are shown.

What people are saying about broccoli

pandemic baking - use for those eggshells

by shiny,

There's so much baking going on here, stuck at home under the nationwide pandemic lockdown – and when we can get eggs we end up with many eggshells. These can be crushed and placed around the base of brassica like cabbage and broccoli. Snails and slugs do…

cabbage cabbages broccoli broccoli
Read more

The nets are up

by shiny,

Due to the pandemic lockdown, I can't go to the hardware store to get things. I've been in semi-isolation since the start of march, and we've been in nationwide lockdown since last week.

I needed to set up the nets to keep out the white butterfly. I've had to be creative and i&#3…

cabbage cabbages broccoli broccoli
Read more

Summer broccoli doesn't work

by shiny,

I planted some broccoli at the start of spring.. I grew fast, made long stems and quickly turned into yellow flowers. I conclude the first spring summer months aren't good for brocoli.

So I've got some new seedlings in now, in the heat of summer, hoping that by the tim…

broccoli broccoli
Read more

Some of features id like

by shiny,

I like to automate the calculations, analysis, and plain old remembering what has happened in the garden.

Some of the challenges in my garden is knowing when it's too late to planting something, if it will cope with the weather conditions here, and working out what is killing the [tomato](/…

tomatoes broccoli broccoli potato potatoes carrot carrots
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Transplant day!

by inkstone,

I originally wanted to do this yesterday but it rained in the morning so that kinda put a damper on things.

So I did it all today instead! A bunch of the seeds I wintersowed in the milk jugs and soda bottles were getting crowded so it was time to move them to their bigger (permanent) containers….

spinach spinach mizuna arugula arugula tatsoi lettuce lettuces radicchio radicchio broccoli broccoli Malabar spinach Malabar spinach okra okra parsley anise
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Image of broccoli

Who's planted broccoli

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Broccoli harvests

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Find broccoli seeds

Nutritional data

A summary of nutritional data per 100g for Broccoli, fresh, raw.

Energy 131.0 kJ
Protein 4.7 g
Fat, total 0.3 g
Carbohydrate 0.4 g
- Sugars 0.4 g
Fibre 3.7 g
Sodium 22.0 mg

Ecological requirements

Data from the FAO EcoCrop database for Brassica oleracea var. botrytis L. [L.]

Family / Taxonomy Magnoliopsida
Dilleniidae
Capparales
Cruciferae
Optimal temperature 10 - 25 °C
Absolute temperature 5 - 30 °C
Killing temperature growth: -5 °C, rest: -5 °C
Optimal rainfall 600 - 1100 mm/year
Absolute rainfall 450 - 1900 mm/year
Optimal soil pH 6.0 - 7.0
Absolute soil pH 5.5 - 8.5
Crop cycle 60 - 120 days
Max altitude 2000 m
Life form herb
Life span biennial
Habit erect
Optimal soil depth deep (>>150 cm)
Optimal soil texture medium
Optimal soil fertility high
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod short day (<12 hours), neutral day (12-14 hours), long day (>14 hours)
Optimal light cloudy skies

Learn more about broccoli

Resources outside Growstuff.