Marconi Red

Family: Solanaceae Sweet Pepper

Planting Schedule

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Sun-warmed and richly aromatic, Marconi Red peppers ripen to a glossy, deep crimson that feels almost lacquered in the garden.

Their thick, smooth walls deliver a sweet-forward flavor with a gentle, savory warmth—ideal for sweet frying where the flesh stays tender and beautifully caramelizes at the edges. Grow Marconi Red for bold color and a dependable, long harvest that turns beds into a living ribbon of red lanterns.

Light: Full SunMaturity: 90 DaysHabit: Bush

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Marconi Red Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Protected Environment Only
Zone 2a	Mar 30th	Jul 20th	Oct 18th – Aug 29th
Zone 2b	Mar 20th	Jul 10th	Oct 8th – Aug 25th
Zone 3a	Mar 20th	Jul 10th	Oct 8th – Sep 1st
Zone 3b	Mar 24th	Jul 14th	Oct 12th – Sep 21st
Zone 4a	Mar 20th	Jul 10th	Oct 8th – Sep 24th
Zone 4b	Mar 18th	Jul 8th	Oct 6th – Sep 27th
Zone 5a	Mar 13th	Jul 3rd	Oct 1st – Sep 30th
Zone 5b	Mar 9th	Jun 29th	Sep 27th – Oct 5th
Zone 6a	Mar 6th	Jun 26th	Sep 24th – Oct 10th
Zone 6b	Feb 28th	Jun 20th	Sep 18th – Oct 16th
Zone 7a	Feb 23rd	Jun 15th	Sep 13th – Oct 20th
Zone 7b	Feb 13th	Jun 5th	Sep 3rd – Oct 28th
Zone 8a	Feb 4th	May 27th	Aug 25th – Nov 5th
Zone 8b	Jan 26th	May 18th	Aug 16th – Nov 12th
Zone 9a	Jan 9th	May 1st	Jul 30th – Nov 26th
Zone 9b	Dec 15th	Apr 6th	Jul 5th – Dec 9th
Zone 10a	Continuous Production
Zone 10b	Continuous Production
Zone 11a	Continuous Production
Zone 11b	Continuous Production
Zone 12a	Continuous Production
Zone 12b	Continuous Production
Zone 13a	Continuous Production
Zone 13b	Continuous Production

Crop Details

Trait	Value
Days to Maturity	90
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

Marconi Red’s thick, smooth flesh turns silky without collapsing, and its sweetness picks up toasted, caramel notes fast when it hits a hot pan. It’s the kind of pepper that gives you real color and a gentle heat that plays especially well with garlic, dairy, and salty proteins.

Best Uses

sweet frying in a hot pan until the edges caramelize
roasting for glossy, meat-like soft flesh and blistered sweetness
stuffing and baking where the walls hold shape
charring and slicing for sandwiches that stay juicy, not watery

Flavor Profile

sweet-forward pepper flavor gentle savory warmth thick, smooth walls with tender bite fragrant, sun-warmed aroma

Kitchen Pairings

garlic olive oil balsamic vinegar parmesan eggs chicken

Frequently Asked Questions

What pest or disease commonly affects Capsicum annuum (Marconi Red), and how do I treat it early?

Watch for aphids and thrips, which can stunt growth and spread virus; check the undersides of leaves weekly and treat at the first signs. For home control, spray with insecticidal soap (especially under leaves) and remove heavily infested leaves; repeat every 5–7 days until new growth is clean. Also keep foliage dry when watering because Capsicum annuum is prone to fungal leaf spots in humid conditions—water at the soil line instead of overhead.

How often should I water Marconi Red during the main growing phase?

During active flowering and fruit set (roughly after the plants reach strong vegetative growth), keep the soil consistently evenly moist but never waterlogged. In most home gardens this means watering deeply about 1–2 times per week, adjusting to hot weather so the top 1 inch dries slightly between waterings. Mulch around the base helps maintain even moisture and reduces blossom-end issues linked to irregular watering.

How can I tell when Marconi Red peppers are ready to harvest?

Harvest timing for Capsicum annuum is when fruits reach full size and color—Marconi Red should be fully red and glossy, typically around 90 days from transplanting/sowing depending on your schedule. If you gently lift a fruit, it should detach with less force when ripe; under-ripe green fruits can be harvested earlier, but for the named “Red” stage, wait for full red color. Check plants daily near maturity because ripe peppers can develop quickly in warm weather.