HeirloomContainer OK

Sweet Pepper 'Bull's Horn'

Capsicum annuum 'Corno di Toro'

A black and white cow statue decorated with tulips

This spectacular Italian heirloom produces enormous 8-inch peppers shaped like a bull's horn with incredibly sweet, tender flesh. The thin-skinned fruits are perfect for frying, roasting, or fresh eating, and their impressive size makes them a showstopper in any garden or kitchen.

Harvest

75-85d

Days to harvest

πŸ“…

Sun

Blossom-End Rot of Tomato

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Zones

4–11

USDA hardiness

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Height

1-3 feet

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Planting Timeline

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Start Indoors
Transplant
Harvest
Start Indoors
Transplant
Harvest

Showing dates for Sweet Pepper 'Bull's Horn' in USDA Zone 7

All Zone 7 pepper β†’

Zone Map

Click a state to update dates

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Sweet Pepper 'Bull's Horn' Β· Zones 4–11

What grows well in Zone 7? β†’

Growing Details

Difficulty
Moderate
Spacing18-24 inches
SoilRich, well-draining soil with plenty of organic matter
pH6.0-7.0
Water1-2 inches per week, consistent deep watering
SeasonWarm season
FlavorExceptionally sweet and mild with tender, thin skin
ColorGreen ripening to bright red
Size8-10 inches long, 2-3 inches wide at base

Zone-by-Zone Planting Calendar

ZoneIndoor StartTransplantDirect SowHarvest
Zone 3April – AprilJune – Julyβ€”September – October
Zone 4March – AprilJune – Juneβ€”August – October
Zone 5March – MarchMay – Juneβ€”August – October
Zone 6March – MarchMay – Juneβ€”August – October
Zone 7February – MarchApril – Mayβ€”July – September
Zone 8February – FebruaryApril – Mayβ€”July – September
Zone 9January – JanuaryMarch – Aprilβ€”June – August
Zone 10January – JanuaryFebruary – Marchβ€”May – July

Complete Growing Guide

Light: Blossom-End Rot of Tomato, Pepper, and Watermelon. Soil: Clay, High Organic Matter, Loam (Silt), Sand. Soil pH: Acid (<6.0), Alkaline (>8.0), Neutral (6.0-8.0). Drainage: Good Drainage. Water: KAP-sih-kum AN-yoo-um. Height: 1 ft. 0 in. - 3 ft. 8 in.. Spread: 0 ft. 6 in. - 1 ft. 0 in.. Spacing: 12 inches-3 feet. Growth rate: Medium. Maintenance: 'Aurora', 'Basket of Fire', 'Black Pearl', 'Buena Mulata', 'Calico', 'California Wonder', 'Candelabra', Cerasiforme Group, 'Chilly Chili', Conioides Group, 'Early Jalapeno', Fasciculatum Group, Grossum Group, 'Hot Returns', Longum Group, 'Mad Hatter', 'Purple Flash', 'Sweet orange', 'Sweet Sunset'. Propagation: Seed. Regions: Coastal, Mountains, Piedmont.

Harvesting

Fruits are a non-pulpy berry and vary considerably across cultivars. Some are long, thin, bright red, and spicy; others are thick, large, and sweet-tasting; others still are small and in ornamental shapes and colors, grown as decoration.

Color: 'Aurora', 'Basket of Fire', 'Black Pearl', 'Buena Mulata', 'Calico', 'California Wonder', 'Candelabra', Cerasiforme Group, 'Chilly Chili', Conioides Group, 'Early Jalapeno', Fasciculatum Group, Grossum Group, 'Hot Returns', Longum Group, 'Mad Hatter', 'Purple Flash', 'Sweet orange', 'Sweet Sunset'. Type: Berry. Length: 1-3 inches. Width: < 1 inch.

Garden value: Edible, Good Dried, Showy

Harvest time: Summer

Bloom time: Summer

Edibility: Fruits edible, but spiciness is unpredictable in intensity.

Storage & Preservation

Fresh Bull's Horn peppers store best at room temperature for 3-5 days, developing even sweeter flavor as they rest. For longer storage, refrigerate unwashed peppers in the crisper drawer for up to 2 weeks, though their thin skin makes them more perishable than thick-walled varieties.

For preservation, these peppers excel at freezing due to their tender flesh. Slice and freeze on baking sheets, then transfer to freezer bags for up to 8 months – perfect for winter stir-fries and soups. Their large size and thin skin make them ideal for roasting and freezing whole after charring and peeling.

Dehydrating works well for Bull's Horn peppers; slice into strips and dry at 135Β°F until leathery. Their sweet flavor concentrates beautifully when dried. For traditional Italian preservation, roast whole peppers, pack in olive oil with garlic and herbs, and refrigerate for up to 3 months.

History & Origin

Origin: Tropical North and South America

Advantages

  • +Disease resistance: Deer, Drought, Heat
  • +Attracts: Songbirds
  • +Wildlife value: Birds are immune to the capsaicin in peppers and can safely eat the fruits with no ill effects. Therefore, these plants may attract birds. Host plant for Potato Tuber Moth.
  • +Edible: Fruits edible, but spiciness is unpredictable in intensity.

Companion Plants

Plant Together

+

Basil

Repels aphids, spider mites, and thrips while potentially improving pepper flavor

+

Tomatoes

Share similar growing conditions and can help deter certain pests when grown together

+

Marigolds

Repel nematodes, aphids, and whiteflies while attracting beneficial insects

+

Oregano

Deters aphids, spider mites, and provides ground cover to retain soil moisture

+

Carrots

Help break up soil and don't compete for nutrients, while peppers provide light shade

+

Onions

Repel aphids, thrips, and other pests that commonly attack peppers

+

Parsley

Attracts beneficial insects like hoverflies and parasitic wasps that control pepper pests

+

Nasturtiums

Act as trap crops for aphids and cucumber beetles while repelling squash bugs

Keep Apart

-

Fennel

Releases allelopathic compounds that inhibit pepper growth and development

-

Brassicas

Compete heavily for nutrients and can stunt pepper growth due to different soil pH preferences

-

Walnut Trees

Produce juglone which is toxic to peppers and can cause wilting and death

Nutrition Facts

Calories
27kcal(1%)
Protein
1.66g(3%)
Fiber
3.4g(12%)
Carbs
5.35g(2%)
Fat
0.45g(1%)
Vitamin C
82.7mg(92%)
Vitamin A
17mcg(2%)
Vitamin K
9.5mcg(8%)
Iron
0.46mg(3%)
Calcium
14mg(1%)
Potassium
256mg(5%)

Per 100g serving. % Daily Value based on 2,000 calorie diet. Source: USDA FoodData Central (FDC #169394)

Pests & Disease Resistance

Resistance

Limited disease resistance typical of heirlooms

Common Pests

European corn borer, aphids, pepper maggots, cutworms

Diseases

Bacterial leaf spot, anthracnose, pepper mottle virus, blossom end rot

Frequently Asked Questions

How long does Bull's Horn pepper take to grow from seed?β–Ό
Bull's Horn peppers take 155-165 days from seed to harvest. Start seeds indoors 8-10 weeks before your last frost, then expect 75-85 days from transplanting to first harvest. In shorter growing seasons, focus on getting transplants out as soon as soil warms to 65Β°F to maximize your harvest window.
Can you grow Bull's Horn peppers in containers?β–Ό
Yes, but use large containers at least 20 gallons in size. Bull's Horn peppers develop extensive root systems and produce heavy fruits that need substantial container space and support. Use rich potting mix, provide consistent watering, and stake plants early. Container growing works especially well in zones 5-6 where you can move pots to maximize warmth.
What do Bull's Horn peppers taste like?β–Ό
Bull's Horn peppers have exceptionally sweet, mild flavor with no heat whatsoever. The thin-skinned flesh is crisp when fresh and becomes incredibly tender when cooked. Many gardeners describe the flavor as more complex and aromatic than standard bell peppers, with subtle fruity notes that intensify when peppers ripen from green to red.
Are Bull's Horn peppers good for beginners?β–Ό
Bull's Horn peppers are moderately challenging and better suited for gardeners with some pepper-growing experience. They require long warm seasons, consistent watering, sturdy support systems, and careful attention to soil temperature. Beginners in warm climates (zones 7-9) will have more success than those in cooler northern areas.
When should I plant Bull's Horn pepper seeds?β–Ό
Start Bull's Horn pepper seeds indoors 8-10 weeks before your last expected frost date. Seeds need warm soil (75-80Β°F) to germinate properly. Don't rush transplanting – wait until nighttime temperatures stay consistently above 55Β°F and soil temperature reaches at least 65Β°F, typically 2-3 weeks after your last frost date.
Do Bull's Horn peppers need support or staking?β–Ό
Absolutely. Bull's Horn peppers produce heavy 8-inch fruits that will snap branches without proper support. Install tomato cages or sturdy stakes at planting time, before the plants establish, to avoid root disturbance later. Each mature pepper can weigh over a pound, so use robust support systems rated for indeterminate tomatoes.

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