Topepo Rosso

Family: Solanaceae Sweet Pepper

Planting Schedule

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Sink your senses into Topepo Rosso’s glossy, horn-shaped peppers—crimson as a ripe sunset, with a firm, thick-walled feel that holds its shape beautifully.

Expect a bright, peppery heat that builds with confidence, delivering a satisfying bite whether you’re using them for bold sauces or for fresh, fiery flavor. A warm-season favorite at about 75 days, Topepo Rosso is made for gardeners who want striking color and dependable performance in every harvest.

Light: Full SunMaturity: 75 DaysHabit: Upright

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Topepo Rosso 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	Apr 6th	Jul 20th	Oct 3rd – Aug 29th
Zone 2b	Mar 27th	Jul 10th	Sep 23rd – Aug 25th
Zone 3a	Mar 27th	Jul 10th	Sep 23rd – Sep 1st
Zone 3b	Mar 31st	Jul 14th	Sep 27th – Sep 21st
Zone 4a	Mar 27th	Jul 10th	Sep 23rd – Sep 24th
Zone 4b	Mar 25th	Jul 8th	Sep 21st – Sep 27th
Zone 5a	Mar 20th	Jul 3rd	Sep 16th – Sep 30th
Zone 5b	Mar 16th	Jun 29th	Sep 12th – Oct 5th
Zone 6a	Mar 13th	Jun 26th	Sep 9th – Oct 10th
Zone 6b	Mar 7th	Jun 20th	Sep 3rd – Oct 16th
Zone 7a	Mar 2nd	Jun 15th	Aug 29th – Oct 20th
Zone 7b	Feb 20th	Jun 5th	Aug 19th – Oct 28th
Zone 8a	Feb 11th	May 27th	Aug 10th – Nov 5th
Zone 8b	Feb 2nd	May 18th	Aug 1st – Nov 12th
Zone 9a	Jan 16th	May 1st	Jul 15th – Nov 26th
Zone 9b	Dec 22nd	Apr 6th	Jun 20th – 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	75
Sun Requirements	Full Sun
Growth Habit	Upright
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

Topepo Rosso’s thick wall and horn shape give you heat plus structure—it doesn’t turn mushy, so it holds up in hot oils, roasts, and chunky sauces. Treat it like a flavor baton: char for smokiness or slice fresh for a bright, pepper-forward burn.

Best Uses

char-and-peel for smoky sauces and quick purées
slice for chili oil or hot pickles where the flesh stays firm
stuff and roast—its thickness resists collapsing
chop into salsas that need heat without watery bleed

Flavor Profile

glossy, thick-walled snap bright, peppery heat with a quick, confident burn slightly sweet pepper flavor under the spice clean, roasted-pepper finish if cooked

Kitchen Pairings

garlic lime smoked paprika olive oil aged cheese (Parmigiano-Reggiano or Pecorino) chicken thighs

Frequently Asked Questions

What pest or disease most commonly affects Capsicum annuum (Italian pepperoncini/Topepo Rosso), and how can I manage it?

Watch for blossom-end rot caused by inconsistent watering and calcium uptake issues, which shows up as dark, sunken patches on the pepper’s bottom. Keep soil moisture steady—water deeply when the top 1–2 in (2–5 cm) dries rather than letting it swing dry/wet. If you see rot repeatedly, mulch to stabilize moisture and consider a soil test before adding calcium rather than adding large amounts of calcium without knowing the cause.

How often should I water Topepo Rosso (Capsicum annuum) during the main growing phase?

During flowering and fruit set, keep soil evenly moist: water about 1–2 times per week depending on heat, or whenever the top few inches begin to dry. Aim for deep watering that wets the root zone, and avoid frequent light splashes that keep the root zone uneven. In full sun at summer temperatures, container plants usually need more frequent checks to prevent drying between waterings.

How do I tell when Topepo Rosso (Capsicum annuum) is ready to harvest?

Harvest when pods have reached full size and have turned to a consistent red color, typically around 75 days from transplant. Peppers should feel firm and crisp, not soft or wrinkled, and they should snap or cut cleanly from the plant. If you pick slightly earlier you may get a firmer, less sweet flavor, but true Topepo Rosso is generally harvested when fully red.