# Cauliflower (Brassica oleracea var. botrytis)

Canonical: https://plantguide.ae/plants/cauliflower · Updated: 2026-10-29
Source: Plant Guide (https://plantguide.ae/plants/cauliflower)

Cauliflower · قرنبيط  
vegetable · exotic · family Brassicaceae · grows 0.4–0.7 m tall, 0.5–0.9 m wide · moderate growth  
full sun · moderate water need  
Ratings for Dubai (1–5, 5 is best): heat 1 · salt 2 · drought 1 · shade 2 · ease of care 2  
Sow or plant: Sep–Dec  
Uses: edible

## Also known as

- **Arabic (العربية):** قرنبيط, زهرة (Zahra), قنبيط (Qunnabeet)
- **Hindi (हिन्दी):** फूलगोभी (Phool gobhi)
- **Urdu (اردو):** پھول گوبھی (Phool gobhi)
- **Malayalam (മലയാളം):** കോളിഫ്ലവർ (Coliflower)
- **Tamil (தமிழ்):** பூக்கோசு (Pookosu)
- **Tagalog:** Koliplawer
- **Bengali (বাংলা):** ফুলকপি (Phulkopi)
- **Persian (فارسی):** گل کلم (Gol kalam)

A cool-season brassica for Dubai's best weeks: start trays from September, plant out from October to December, and cut firm white heads from about December to March.

## About

Meet cauliflower, the crop that rewards patience and punishes shortcuts. In the few months when Dubai's weather is mild enough, it builds a rosette of large blue-green leaves and, at the centre, a dense white curd that swells from a button to a head the size of a fist.

Its character is exacting. It wants steady water, steady food and a cool spell, and it signals any stress by making a small, early head. Tie the leaves over the curd at the right moment and it stays white and sweet; leave it bare in the sun and it yellows.

What it brings is the kind of harvest that makes a winter garden feel serious: one head from your own bed, cut the same morning and cooked within the hour. The plants take space and attention for about three months, and a single well-grown head repays it.

Cauliflower is one of the more demanding winter brassicas, and one of the most rewarding. The UAE Ministry of Climate Change and Environment's calendar lists nursery sowing from September to December and field planting from October to December, with harvest 70 to 90 days later. BBC Good Food Middle East gives October to November, and Dubai Garden Centre's horticulturist told The National that cauliflower seedlings are raised in a greenhouse from mid-August and set out in the open field from November to January. A Dubai landscaping specialist quoted by Gulf News says cool-weather crops, cauliflower among them, flourish at 10 to 18°C and suit planting from late November or early December.

UF/IFAS calls cauliflower a cool-season vegetable and says transplants are the most foolproof start. Space plants 12 to 18 inches (30 to 45 cm) apart in soil with a pH of 6.0 to 7.0, and keep it fed and evenly watered: a nutrient shortage, a lack of irrigation or a run of cold days makes the plant form a tiny head early, called buttoning, which never reaches full size. White heads sunburn and discolour, so when the curd is about the size of a teacup tie the longest leaves over it with soft twine, or choose a self-blanching cultivar. Cut when the head is fully formed but has not begun to separate; UF/IFAS notes heads develop much faster in warm weather.

In Dubai, the soil and the water need the same care as for any vegetable. Dubai Garden Centre's horticulturist told The National that UAE sand carries too much salt and is replaced with sweet sand to about 20 cm deep, then mixed with compost or manure, which is what a raised bed gives you. FAO rates the cauliflower group as moderately sensitive to salt, an estimate rather than a measured threshold, so give it clean water. Aphids, leaf miners and caterpillars are the usual visitors, and a weekly look under the leaves is the cheapest protection.

## Through the year

Cauliflower has one season. Trays are sown from September and the seedlings go into the bed from October to December, in cool, light-shaded weather. From November to March, check the undersides of the leaves each week for aphids, leaf miners and caterpillars. Heads appear 70 to 90 days after planting out, so cutting runs from about December to March. Tie the leaves over each curd as it passes the size of a teacup. By April the average high is 34°C and the crop is done: clear the bed and let it rest.

| When | What | Note |
| --- | --- | --- |
| Sep–Dec | Sow: Nursery sowing | Ministry calendar: nursery September–December. Start trays in light shade while days are still hot; BBC Good Food Middle East gives October–November. |
| Oct–Dec | Plant: Plant out seedlings | Ministry calendar: field planting October–December. Dubai Garden Centre told The National to plant out from November to January; space plants 30–45 cm apart. |
| Nov–Mar | Pest watch: Aphids, leaf miners and caterpillars | UF/IFAS lists aphids, leaf miners, cabbage loopers and diamondback moth larvae on cauliflower; Dubai Garden Centre names aphids, whitefly and leaf miners as common in the UAE. |
| Dec–Mar | Harvest: Cut firm white heads | Ministry calendar: 70–90 days. Cut when the head is full but before it separates (UF/IFAS). |
| Apr–May | Heat stress: Too warm for heads | UF/IFAS calls it a cool-season crop. Dubai's average high reaches 34°C in April and 38°C in May, so clear the bed and rest it. |

## Care in Dubai

- **Watering in summer:** Not grown in summer in Dubai; the cool-season crop is finished by April.
- **Watering in winter:** Water steadily so the soil never dries out, early in the morning from a drip line. Even moisture is what keeps heads growing.
- **While establishing:** Keep the transplants evenly moist from planting, with light shade in warm October weather. A lack of irrigation causes buttoning (UF/IFAS).
- **Soil:** Sweet soil blended with compost, as in a raised bed, with a pH of 6.0 to 7.0 (UF/IFAS). Dubai Garden Centre advises replacing the native salty sand to about 20 cm deep.
- **Feeding:** Feed before, during or soon after planting and again as the plant grows; UF/IFAS says to test the soil first and avoid over-applying. A nutrient shortage causes buttoning.
- **Pruning:** No pruning. Tie the longest leaves loosely over the curd when it reaches about 7–8 cm across, unless the cultivar is self-blanching (UF/IFAS).
- **Planting:** Start trays from September, plant out from October to December at 30–45 cm spacing, and grow transplants at 13°C or warmer, since UF/IFAS says a cold spell can make seedlings button.
- **Pests and problems:** Aphids; Leaf miners; Cabbage loopers; Diamondback moth caterpillars; Whitefly
- **Toxicity:** Not known to be toxic; cauliflower is a normal food for people. No ASPCA listing was found for it, so do not treat the plant as pet-safe without checking.

## Good and bad

**Pros**
- Ministry calendar gives 70–90 days from planting out to harvest
- A cool-season classic: Dubai's December to March suits it
- Self-blanching cultivars skip the leaf-tying step (UF/IFAS)
- One firm head is a real harvest from a single raised-bed plant

**Cons**
- Hunger or thirst makes it button: a tiny head that never grows
- Needs 30–45 cm of space per plant for a single head (UF/IFAS)
- Aphids, leaf miners and caterpillars are common on cole crops
- Moderately salt-sensitive (FAO estimate); needs clean water

## Common mistakes

- Planting out in hot September weather. Transplants stall, so wait until October and keep trays in light shade until then.
- Letting the bed dry out or run short of food. UF/IFAS says this makes the plant button, forming a tiny head that never grows.
- Leaving a white head bare in the sun. UF/IFAS says exposed heads discolour, so tie the leaves over the curd or choose a self-blanching cultivar.
- Planting too late. Heads develop much faster in warm weather (UF/IFAS), and Dubai's average high is 34°C by April.
- Using salty water or untreated sand. FAO rates the group moderately sensitive to salt, and Dubai Garden Centre says UAE sand has too much.

## Good to know

- Cauliflower, broccoli, cabbage, kale and Brussels sprouts are all forms of one species, Brassica oleracea, so rotate them together.
- Heads are usually white but can be green, orange or purple, and the Romanesco type has a spiralled curd (Wikipedia).
- A Dubai landscaping specialist quoted by Gulf News describes cool-weather crops as slower but fuller in flavour, because they grow at 10 to 18°C.
- UAE farming enthusiast Sudheesh Guruvayoor told Gulf News in 2018 that winter months suit cauliflower, broccoli and cabbage.
- FAO rates the cauliflower group (Botrytis Group) as moderately sensitive to salt, but gives no yield threshold, since the rating is an estimate.

## Using it in a garden

Roles: Raised-bed winter crop, Back-of-bed leafy structure, Cool-season anchor in a rotation, Large-container vegetable

Give cauliflower a sunny spot in a raised bed with sweet soil and compost, where a drip line runs on a timer and each plant has 30 to 45 cm. Gulf News gardeners say most vegetables need 6 to 8 hours of sun a day. Plant it where you walk past daily so aphids and caterpillars are spotted early, and rotate it away from the other brassicas the following year.

- [Broccoli](https://plantguide.ae/plants/broccoli.md): The same family and the same October to December window, so the two share a bed, a drip line and the same pest checks.
- [Cabbage](https://plantguide.ae/plants/cabbage.md): The Ministry gives cabbage the same nursery and field dates, so a row of each fills a winter bed together.
- [Onion](https://plantguide.ae/plants/onion.md): A different family with the same planting season, so it makes a good neighbour in the rotation.
- [Lettuce](https://plantguide.ae/plants/lettuce.md): A cool-season salad crop for the gaps and edges, harvested before the cauliflower heads need the room.

## FAQ

**When should I plant cauliflower in Dubai?**  
Sow trays from September to December and plant out from October to December, per the Ministry's calendar. BBC Good Food Middle East says October to November, and Dubai Garden Centre says plant out from November to January.

**How long does cauliflower take to grow?**  
The Ministry's calendar gives 70 to 90 days to harvest.

**Why did my cauliflower make a tiny head?**  
That is buttoning. UF/IFAS says it happens when the plant lacks nutrients or irrigation, or has a spell of cold. Keep feeding and watering steady from the day you plant out.

**Do I need to tie the leaves over the head?**  
For white cultivars, yes. UF/IFAS says to blanch the head once it is about the size of a teacup, because exposed white heads sunburn and discolour. Self-blanching cultivars do it themselves.

**Can I grow cauliflower in a pot?**  
A large, deep pot can carry a single plant if watering stays steady. Give each plant 30 to 45 cm of space and use compost-rich soil, not the native sand.

**What eats cauliflower in Dubai?**  
Aphids, whitefly and leaf miners, which Dubai Garden Centre calls common in the UAE, plus caterpillars such as cabbage loopers and diamondback moth larvae (UF/IFAS). Check under the leaves each week.

## Related plants

[Broccoli](https://plantguide.ae/plants/broccoli.md) · [Cabbage](https://plantguide.ae/plants/cabbage.md) · [Kale](https://plantguide.ae/plants/kale.md) · [Onion](https://plantguide.ae/plants/onion.md) · [Lettuce](https://plantguide.ae/plants/lettuce.md)

## Photos

![A young cauliflower head forming at the centre of a plant with large blue-green leaves](https://upload.wikimedia.org/wikipedia/commons/0/08/Growing_Cauliflower.jpg)  
Photo: Kumar83 / CC0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Growing_Cauliflower.jpg))

![A field of cauliflower plants in rows under a blue sky in Chhindwara district, India](https://upload.wikimedia.org/wikipedia/commons/7/7e/A_cauliflower_farm_in_Sohagpur_Village_of_Chhindwara_District.jpg)  
Photo: Kaushlendrapathe / CC0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:A_cauliflower_farm_in_Sohagpur_Village_of_Chhindwara_District.jpg))

![A cauliflower plant with a white head ready to cut, framed by its large green leaves](https://upload.wikimedia.org/wikipedia/commons/0/08/Bloemkool.jpg)  
Photo: Rasbak / CC BY-SA 3.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Bloemkool.jpg))

![A white cauliflower head with its pale green leaves on a plain background](https://upload.wikimedia.org/wikipedia/commons/2/2f/Chou-fleur_02.jpg)  
Photo: Coyau / CC BY-SA 3.0 / Wikimedia Commons ([source](https://commons.wikimedia.org/wiki/File:Chou-fleur_02.jpg))

## Sources

- [UAE Ministry of Climate Change and Environment: Dates for Planting Vegetables and Fruits in the UAE](https://moccae.gov.ae/assets/download/56f7a89b/agriculture_calender_page_en.pdf.aspx)
- [BBC Good Food Middle East: A guide to growing fruits and vegetables in the UAE](https://bbcgoodfoodme.com/how-to/a-guide-to-growing-fruits-and-vegetables-in-the-uae)
- [The National: Garden frenzy (Dubai Garden Centre advice on soil and sowing dates)](https://www.thenationalnews.com/lifestyle/garden-frenzy-1.553767)
- [Gulf News: Winter gardening in the UAE, a budget-friendly guide to growing your own vegetables](https://gulfnews.com/friday/home/winter-gardening-in-the-uae-a-budget-friendly-guide-to-growing-your-own-vegetables-1.1733397053629)
- [Gulf News: How to grow your own vegetable garden in UAE](https://gulfnews.com/going-out/society/how-to-grow-your-own-vegetable-garden-in-uae-1.2065964)
- [FAO: Crop salt tolerance data (Annex 1)](https://www.fao.org/4/y4263e/y4263e0e.htm)
- [Wikipedia: Climate of Dubai (1991 to 2020 normals)](https://en.wikipedia.org/wiki/Climate_of_Dubai)
- [ASPCA: Toxic and Non-Toxic Plants list (no entry found for this plant)](https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants)
- [UF/IFAS Gardening Solutions: Cauliflower](https://gardeningsolutions.ifas.ufl.edu/plants/edibles/vegetables/cauliflower/)
- [Wikipedia: Cauliflower](https://en.wikipedia.org/wiki/Cauliflower)
- [Arabic Wikipedia: قرنبيط](https://ar.wikipedia.org/wiki/%D9%82%D8%B1%D9%86%D8%A8%D9%8A%D8%B7)
- [Hindi Wikipedia: फूल गोभी](https://hi.wikipedia.org/wiki/%E0%A4%AB%E0%A5%82%E0%A4%B2_%E0%A4%97%E0%A5%8B%E0%A4%AD%E0%A5%80)
- [Urdu Wikipedia: گوبھی](https://ur.wikipedia.org/wiki/%DA%AF%D9%88%D8%A8%DA%BE%DB%8C)
- [Malayalam Wikipedia: കോളിഫ്ലവർ](https://ml.wikipedia.org/wiki/%E0%B4%95%E0%B5%8B%E0%B4%B3%E0%B4%BF%E0%B4%AB%E0%B5%8D%E0%B4%B2%E0%B4%B5%E0%B5%BC)
- [Tamil Wikipedia: பூக்கோசு](https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AF%82%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%8B%E0%AE%9A%E0%AF%81)
- [Tagalog Wikipedia: Cauliflower](https://tl.wikipedia.org/wiki/Cauliflower)
- [Bengali Wikipedia: ফুলকপি](https://bn.wikipedia.org/wiki/%E0%A6%AB%E0%A7%81%E0%A6%B2%E0%A6%95%E0%A6%AA%E0%A6%BF)
- [Persian Wikipedia: گل کلم](https://fa.wikipedia.org/wiki/%DA%AF%D9%84_%DA%A9%D9%84%D9%85)