How to Grow Giant Ají Amarillo

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Giant Ají Amarillo

Capsicum baccatum var. pendulum

vegetable

Giant Ají Amarillo is a Peruvian heirloom pepper known for its large, golden-yellow fruits and distinctive fruity, slightly smoky flavor. This variety produces abundantly and is prized in South American cuisine for sauces, marinades, and fresh use. The plants are vigorous growers that can reach 3-4 feet tall.

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Example Giant Ají Amarillo timeline · Pittsburgh, PA (Zone 6b)

Plant Giant Ají Amarillo
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Giant Ají Amarillo
Around Jul 16

≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Giant Ají Amarillo dates for your own zip code.

Growing Conditions

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Sun: Full sun, 8+ hours daily; more sunlight increases fruit production and flavor

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Water: Consistent moisture during growing season; water deeply 1-2 times weekly depending on temperature and rainfall. Allow soil surface to dry slightly between waterings. Reduce watering slightly once fruits set to concentrate flavors.

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Spacing: 18 inches

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Days to maturity: 90-120 days from transplant to first ripe fruit

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Planting depth: 0.25 inches for seeds; transplants at same depth as nursery pot

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost aged manure perlite or sand for drainage balanced fertilizer (NPK 5-10-10 or similar)

Growing Zones

Find your zone →

Thrives in zones 9-11; can be grown in zones 6-8 with season extension or container cultivation

9a 9b 10a 10b 11a 11b

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Growth Stages

Seedling

2-3 weeks

Tiny two-lobed cotyledons emerge; first true leaves appear oval-shaped. Plants are delicate and pale green.

Maintain soil moisture without waterlogging. Provide 14-16 hours of bright light daily. Keep temperature 70-80°F. Use seed-starting mix for best results.

Vegetative Growth

4-8 weeks

Plants develop multiple true leaves and lateral branches. Stems thicken and leaves become darker green. Growth is rapid with warm temperatures.

Maintain consistent warmth (70-85°F). Harden off transplants gradually before field planting. Begin weekly light fertilizing once true leaves emerge. Support stems if growing indoors.

Flowering

3-4 weeks

White or pale yellow flowers with yellow anthers appear in leaf axils. Plants are bushy and vigorous. Each flower can produce one pepper.

Ensure 8+ hours of direct sun for good pollination. Maintain consistent watering and warm temperatures (75-85°F). Avoid excess nitrogen, which promotes foliage over flowers. Hand-pollinate if needed indoors.

Fruiting & Maturation

4-6 weeks per fruit

Green peppers develop rapidly, reaching full size (4-6 inches long, 2-3 inches wide). Color changes from green to pale yellow to golden-yellow over 2-3 weeks as peppers ripen.

Continue consistent deep watering. Apply balanced fertilizer every 2-3 weeks. Mulch to retain moisture and regulate soil temperature. Prune suckers below first flower cluster if desired for larger fruits.

Harvest

Ongoing until frost

Fruits reach full golden-yellow color with glossy appearance. Peppers are firm and thick-walled. Plants continue producing until frost.

Harvest fully ripe yellow peppers for best flavor. Cut peppers with small knife rather than pulling to avoid branch damage. Earlier green harvests are possible but less flavorful. Continue harvesting throughout season.

Companion Planting

Plan your garden →

Plant with:

Basil Parsley Onions Garlic Borage Marigolds Thyme Nasturtiums

Avoid planting near:

Fennel Kohlrabi Other Capsicum species (to prevent cross-pollination if seed-saving) Heavy feeders like brassicas

Common Pests

Spray with strong water stream; use miticide if severe; maintain humidity; introduce predatory mites
Spray with insecticidal soap; use neem oil; introduce ladybugs; strong water spray
Remove infested buds and fruits immediately; use pheromone traps; apply spinosad if needed
Yellow sticky traps; neem oil spray; reflective mulches; ensure good air circulation
Row covers on young plants; neem oil; diatomaceous earth; reflective mulch
Blue sticky traps; neem oil; spinosad; remove affected flowers

Uses

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Peruvian Ají Amarillo Sauce

Culinary

Giant Ají Amarillo is the essential ingredient in traditional Peruvian ají amarillo paste and sauce, used to flavor ceviche, chicken dishes, and soups. The fruity, mildly spicy flavor (12,000-23,500 Scoville units) is distinctive in South American cooking. [source]

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Fresh Cooking & Marinades

Culinary

The large, thick-walled fruits are ideal for stuffing, roasting, grilling, or using fresh in salsas and marinades. Their mild heat and fruity notes complement seafood and poultry particularly well. [source]

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Vitamin C & Antioxidants

Medicinal

Golden peppers are rich in vitamin C, carotenoids, and capsaicin, which may support immune function and have anti-inflammatory properties. Traditionally used in South American folk medicine for digestive support. [source]

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Pepper Drying & Storage

Household

The thick walls and large size make Giant Ají Amarillo excellent for drying whole or in halves. Dried peppers store well and can be rehydrated for sauces or ground into powder year-round. [source]

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Pollinator Attraction

Wildlife

The abundant white flowers attract bees and other pollinators, making this pepper plant a valuable addition to pollinator gardens while providing a harvestable crop. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest peppers when they reach full golden-yellow color for maximum sweetness and fruity flavor (typically 90-120+ days from transplant). Peppers can be picked earlier at green stage but will have less developed flavor. Use clean scissors or a sharp knife to cut peppers 0.5 inch from the stem to avoid damaging branches. Harvest regularly to encourage continued fruit production. In frost-free climates, plants can produce for several seasons.

Fun Facts

🌱 Giant Ají Amarillo is a Peruvian heirloom pepper that has been cultivated in the Andes for centuries and is essential to Peruvian cuisine, particularly in dishes like ceviche and causa.
🌱 This variety belongs to Capsicum baccatum, a species native to South America that is distinct from common bell peppers and jalapeños and has a unique fruity flavor profile valued by chefs worldwide.
🌱 Unlike most pepper varieties, Ají Amarillo peppers actually improve in flavor complexity after drying and rehydrating, making them a staple in authentic Peruvian kitchens where the paste is prepared fresh year-round.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Full Sun Heirloom Mulch Pollination Sucker Transplant True Leaves

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