Purple of Sicily

Family: Brassicaceae Vegetable

Velvety, inky-purple curds emerge with a painterly glow, holding their color with a confident, tight dome that feels almost sculpted in the garden.

Purple of Sicily offers a mild, sweet cauliflower flavor and a fine, tender texture—ideal for roasting until caramel-kissed, or for fresh florets when you want a vivid splash of color in salads and platters. Grow it for standout visual appeal and dependable performance, reaching maturity in about 75 days for a satisfying harvest window.

Light: Full SunMaturity: 75 DaysHabit: Rosette

Botanical illustration of Purple of Sicily

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 9th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	75
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	30
Harden Off (days)	6

Culinary Notes

Chef's Note

This cauliflower stays sweet and tender, with curds that roast into crisp, caramelized edges instead of turning mushy. Use it for hot roasting or quick, dressed salads—its color won’t fight your fork, it’ll just make it look like you planned the whole thing.

Best Uses

high-heat roast/char for caramel-kissed edges while keeping the interior silky
quick blanch and shock, then toss into a bright vinaigrette salad for color retention
steam and puree into a smooth, pale-flecked mash or gratin base
cut into thick florets for roasting on a sheet with olive oil and salt, no fuss

Flavor Profile

mild, sweet brassica flavor tender, fine-grained bite inky-purple curds that turn buttery-golden when roasted

Kitchen Pairings

garlic lemon olive oil Parmesan brown butter capers

Frequently Asked Questions

What pest or disease most commonly affects Brassica oleracea var. botrytis (Purple of Sicily), and how do I control it?

A common issue is clubroot (often visible as sudden wilting and stunted heads, with swollen, club-like roots). Prevent it by avoiding planting in the same spot for several years and keeping soil well-drained; if clubroot appears, remove affected plants and do not reuse that bed for brassicas. For ongoing protection, maintain even plant spacing for airflow and avoid over-wet soil conditions that favor disease spread.

How often should I water Purple of Sicily during the main head-forming phase?

During the ~weeks leading up to head formation, keep the root zone consistently moist but never waterlogged—aim for about 1 inch (2.5 cm) of water per week total, adjusted for heat and rainfall. Water deeply so moisture reaches the main rooting depth, then let the top 1 inch (2–3 cm) of soil dry slightly before watering again. Uneven moisture can lead to stressed, poorly formed curds and more susceptibility to rot.

How can I tell when Purple of Sicily is ready to harvest?

Harvest when the curds are tight and fully colored for Purple of Sicily, typically around 75 days from transplanting (or roughly per your seed-start schedule). Use a sharp knife to cut the main head just below the curds when they’re firm—not starting to loosen or flower. If you wait until the head begins to open, flavor can turn more bitter and the curds won’t hold as well.