Purple cauliflower is a naturally colorful variety of cauliflower with a deep violet hue and mild, slightly nutty flavor.
Think of it as the slightly sexier, antioxidant-rich sibling of classic white cauliflower.
This guide covers origin story, what gives it that precious purple hue, the different varieties, and the best ways to cook with it for colorfully delicious fun in the kitchen.
What is Purple Caulilower?
Purple cauliflower is exactly what it sounds like - a general name for cauliflower varieties whose heads are naturally purple, ranging from pastel lavender to deep violet.
This umbrella terms includes several varieties, such as Sicilian Violet, Violet Queen, Purple Cape, Mulberry Cauliflower and more.
Within each variety, there’s a range tone and hue, from subtle to vibrant. The intensity of the purple color depends on the amount of sunlight the heads receive during cultivation.
Scientifically & Botanically
Purple cauliflower is botanically classified as Brassica oleracea var. botrytis and belongs to the Brassicaceae (cruciferous) family.
It’s the same species as white cauliflower - simply a naturally pigmented variety. Same plant. Different color.
Like all cauliflower varieties, it’s closely related to broccoli, kale, cabbage, and Brussels sprouts - all cultivars of wild mustard (Brassica oleracea).
What Makes Purple Cauliflower Purple
Purple cauliflower gets its vibrant hue from anthocyanins - natural plant pigments that are powerful antioxidants.
Anthocyanins are responsible for the red, purple, and blue tones in fruits and vegetables like red okra, purple potatoes and purple kale.
There are nearly 2,000 known natural plant pigments, and about 640 of them are anthocyanins.
Because purple fruits and vegetables are rich in anthocyanins, they often contain higher levels of antioxidants than their non-purple counterparts. So that stunning violet color brings both beauty and nutritional benefits.
Cauliflower Colors & Their Pigments
Cauliflower’s color story is all about plant pigments.
Purple → anthocyanins
Orange → carotenoids
Green → extra chlorophyll
All were developed through traditional plant breeding - not genetic modification.
Purple Cauliflower History
Purple cauliflower wasn’t created in a lab - it emerged through traditional crossbreeding and natural mutations over time.
Cauliflower is believed to be native to the Northeastern Mediterranean, and the earliest cultivated varieties were white. During the Middle Ages, it was primarily grown on the island of Cyprus before spreading throughout Western Europe by the 13th century and eventually reaching Northern Europe, Asia, and North America by the early 19th century.
In the 1970s, orange cauliflower was discovered growing naturally in a Canadian field. It took years of crossbreeding before it was widely available.
Purple cauliflower, a natural hybrid variety, followed, developed through traditional plant breeding techniques.
By the early 21st century, orange, green, and purple cauliflower had become staples at farmers markets and specialty grocers. What began as a humble white brassica has officially entered its colorful era - now grown commercially across North and South America, Europe, and beyond.
And I, for one, am here for it.
What Does Purple Cauliflower Taste Like?
Purple cauliflower tastes just like white cauliflower - mild, slightly sweet, and subtly nutty. The difference is visual, not flavorful.
Cooking with Purple Cauliflower
Treat it like white cauliflower - sexier.
Cook purple cauliflower exactly as you would white - it’s totally interchangeable.
Roast it until caramelized and nutty, slice it into “steaks,” shave it raw into salads, pickle it hot pink, mash it, rice it, grill it. It can handle it all.
Does it Stay Purple when Cooked?
Short answer: not really.
Roasting, grilling, and sautéing turns it blue-ish.
Steaming/boiling fades the purple color, dulling it significantly and turns it a bit brown-ish.
Chef’s Tip: Pickling purple cauliflower turn the color hot pink.
How to Help Retain the Vibrant Purple Color?
Chef’s Tip: A little acid helps preserve the color.
Add a squeeze of lemon juice or a splash of vinegar to the pan when sautéing & roasting or the water when blanching/boiling. This helps the purple stay brighter and more vibrant.
Buying & Storing Purple Cauliflower
Where to Buy
Look for purple cauliflower at your local farmers market in the fall (September–November), when it’s at peak season.
It’s cultivated across North and South America and Europe, and often available year-round at specialty grocers. In California - the nation’s largest cauliflower producer — it’s widely available year-round.
What to look for Choose heads that feel heavy for their size with tightly packed, firm florets.
Color can range from soft lavender to deep violet - tone isn’t a freshness indicator, but the hue should look vibrant and even. Skip any heads that appear dull or patchy.
Leaves should be fresh and crisp. Wilted leaves = an older cauliflower.
How to Store
Store in a loosely sealed bag in the crisper drawer of fridge for up to 5 days.
Cauliflower needs airflow - don’t seal it airtight.
Chef’s Tip: If it came tightly wrapped from the store, loosen or remove the plastic and transfer to a breathable bag. Trapped moisture speeds up spoilage.
When Is Purple Cauliflower in Season?
Purple cauliflower is a cool-season crop that thrives in fall, with peak season running September through November - though it’s available year-round.
In California - the largest cauliflower-producing state in the U.S. - it’s cultivated year-round, making it easy to find across the state.
Cauliflower Recipes
Looking for cauliflower recipes? Check out mine featuring purple cauliflower (though any color can be used) below.
- Cauliflower Soup - a silky vegan cauliflower soup brightened with fennel, celery root, and ginger.
- Pasta with Charred Cauliflower - charred cauliflower, crispy capers, and garlicky brown butter breadcrumbs come together for a pasta & veggies dish bursting with flavor.
- Cauliflower Tart - a creamy cauliflower tart baked in a garlic and herb crust.
More Purple Veggies
If purple cauliflower caught your eye - you’re not alone. Purple veggies are kind of my love language. Check out these other preciously purple produce guides
- Purple Potatoes — the antioxidant-rich members of the potato family.
- Purple Carrots — the original carrot, deeply purple and antioxidant-rich.
- Purple Kale — the glam, antioxidant-rich version of classic green kale.
- Purple Brussel Sprouts — the sweeter, nuttier, antioxidant-rich cousin of the classic green sprout.
- Purple Asparagus — the sweetest, most tender spear of all.
- Purple Basil — same plant as green basil, just naturally purple and antioxidant-rich.
- Radicchio — the vibrant purple veggie that brings bold color to winter cooking.
If you spot purple cauliflower, bring it home and play. And I’d love to see - tag me on Instagram, @danielagerson, so I can see your preciously purple creations.
There’s a whole wide world of veggie colors out there & hope I inspired ya to get your vibrant veggie game on.
Let's make waves in the kitchen.
This was a very interesting and informative post! Thank you!
Absolutely pleasure Pattie and so super stoked to hear your enjoyed it!
Thank you so much for your informative article. Very helpful for me as I grown purple cauliflower year on year. Not sure if it is the sandy soil or climate in Perth Western Australia, but my caulies are rich purple in colour.
Absolute pleasure Linda and thanks so much for the sweet feedback! That's so super rad that ya grown your own cauliflower! Love that it's rich purple too - thanks for sharing :).