Yellow Marconi

Family: Solanaceae Sweet Pepper

Sunlit and sweet, Yellow Marconi peppers glow in the garden with warm, mellow color and a firm, thick-walled crunch.

Their Bull’s Horn shape tapers to a gentle point, offering a juicy bite and a mild, friendly flavor that’s especially satisfying at full ripeness. Grow Yellow Marconi for standout fresh use, plus vibrant roasting and grilling, and for bright, mellow sauces and quick pickles that showcase their sunny character.

Light: Full SunMaturity: 80 DaysHabit: Bush

Botanical illustration of Yellow Marconi

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

Crop Dates

Milestone	Date
Start Indoors	Mar 7th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Jun 20th
Harvest Begins	Sep 8th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	80
Sun Requirements	Full Sun
Growth Habit	Bush
Support Needed	Stake
Planting Depth	Normal
Germination Temp (°F)	80
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Culinary Notes

Chef's Note

Yellow Marconi’s thick wall and mild sweetness make it a standout pepper for eating out of hand—no harsh bite, just juicy crunch. When you char or roast it, the fruit turns honeyed and smoky, holding up beautifully in grilled toppings, quick pickles, and glossy sauces.

Best Uses

slice thick for raw snacking and crunch-heavy salads
roast or grill until blistered for a smoky-sweet topping
quick-pickle for snappy, tang-bright yellow pepper rings
blend into a smooth, sunny sauce with a mellow finish

Flavor Profile

sun-sweet, mild peppery flavor firm, thick-walled crunch juicy bite with low heat toasty sweetness when roasted

Kitchen Pairings

olive oil garlic lemon white vinegar feta cheese chicken

Frequently Asked Questions

Yellow Marconi (Capsicum annuum): What pest or disease should I watch for, and how do I stop it?

In Capsicum annuum, aphids and whiteflies often show up on young growth and can lead to sticky residue and virus risk; check the undersides of leaves weekly. Spray with insecticidal soap (or a strong water blast for light infestations) and repeat every 5–7 days until activity stops. If you see leaf wilt or dark, water-soaked spots, remove affected leaves and improve airflow around plants to reduce foliar fungal spread.

How often should I water Yellow Marconi during its main growth phase?

During active flowering and fruit set (roughly after plants are established and growing fast), keep soil evenly moist but not waterlogged—about 1 inch (2.5 cm) per week total, adjusted for heat and container size. Water deeply when the top 1 inch of soil feels dry to the touch, because inconsistent moisture can cause blossom drop and misshapen fruit.

How can I tell when Yellow Marconi is ready to harvest?

Harvest when the peppers reach their full mature size and the pods turn from pale green to a uniform bright yellow (usually around 80 days from transplant). For best flavor, pick when the skin is glossy and firm—if they soften or wrinkle, they are past peak. Use scissors or snips to cut the stem to avoid tearing the plant.