Purple Romagna

Family: Asteraceae Vegetable

Velvety, deep purple globes with tightly layered, armor-like bracts arrive at maturity in regal waves—tender at the core and richly flavored, with a gentle sweetness that lingers like roasted nuts.

Purple Romagna’s heads hold their shape beautifully, offering a firm, succulent texture that shines in artichoke-forward dishes, from roasting to steaming, as well as in savory sauces and tangy pickles. Grow it for a long, satisfying harvest window and a spectacular garden centerpiece as the bracts deepen to their most dramatic hue.

Light: Full SunMaturity: 90 DaysHabit: Upright

Botanical illustration of Purple Romagna

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

Crop Dates

Milestone	Date
Start Indoors	Feb 14th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 24th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	5

Culinary Notes

Chef's Note

Purple Romagna gives you globes that keep their shape, so the bracts stay meaty instead of collapsing—ideal for roasting or steaming. The combination of sweet-leaning nuttiness and that characteristic artichoke bitterness makes it happiest with lemon, garlic, and salty umami like anchovy or Parmesan.

Best Uses

roast or steam until the inner hearts are tender, then eat bracts with lemony butter
make a thicket-thick artichoke dip where the briney-sweet flavor stays anchored (not watery)
braise into a savory pan sauce for chicken, sausages, or white beans
quick-pickle the tender bracts for tangy, purple-bright snacking

Flavor Profile

velvety, tightly layered bracts with a firm, succulent bite gentle sweetness with a roasted-nut bitterness earthy, grassy artichoke savor that lingers on the palate

Kitchen Pairings

lemon garlic olive oil butter Parmesan anchovy

Frequently Asked Questions

What pest or disease commonly affects Cynara cardunculus (globe artichoke) like Purple Romagna, and how do I control it?

Artichoke plants (Cynara cardunculus) are especially prone to aphids and fungal issues like powdery mildew in warm, humid weather. Spray aphids off with a strong jet of water and, if needed, treat with insecticidal soap, focusing on the undersides of new growth; improve airflow by spacing plants and removing lower leaves that touch the soil. For powdery mildew, water at the base (not the leaves) and apply a sulfur-based fungicide early when you first see white growth.

During the main growing phase, how often should I water Purple Romagna globe artichokes to keep soil moisture right?

From establishment through bud formation (roughly the next 6–8 weeks before harvest), keep the root zone evenly moist but not waterlogged—aim for about 1–2 inches (2.5–5 cm) of water per week depending on heat and rainfall. Water deeply so moisture reaches the crown and side roots, then let the top 1 inch of soil dry slightly before watering again. Inconsistent moisture can reduce bud size and lead to tough, poorly filled heads.

How can I tell when Purple Romagna globe artichokes are ready to harvest?

Harvest when the buds are full-sized and the scales are still tight and green-purple, with the inner bracts not yet loosening or spreading. A good trigger is when the bud reaches its typical mature diameter (often around 3–5 inches, depending on spacing and conditions) and the bracts squeak slightly when gently pressed. If you see the tips starting to open or expose purple thistle-like flowers, harvest immediately—overmature heads become fuzzy and less tender.