How to Grow Ají Amarillo

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Ají Amarillo

Capsicum baccatum var. pendulum

vegetable

Ají Amarillo is a Peruvian chili pepper known for its bright yellow or golden color and fruity, moderately hot flavor. This heirloom variety is a staple in Peruvian cuisine, prized for its unique taste profile combining fruitiness with mild heat (30,000-50,000 Scoville units). The plant produces abundant medium-sized peppers on compact to medium bushes.

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

Plant Ají Amarillo
Around Apr 17

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

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

≈ 90 days after planting

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

Growing Conditions

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Sun: Full sun, 8+ hours daily

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Water: Keep soil consistently moist but not waterlogged; water deeply when top inch is dry. Reduce watering slightly once fruit sets. Drip irrigation is ideal to prevent fungal issues.

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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 they were growing

Soil

Type: Well-draining loamy soil rich in organic matter

pH: 6.0-6.8

Amendments:

Compost aged manure perlite or sand for drainage kelp meal

Growing Zones

Find your zone →

Thrives in zones 9b-11; can be grown in cooler zones as an annual with extended season or in containers moved indoors

9b 10a 10b 11a 11b

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Growth Stages

Seedling

2-3 weeks

Tiny seedlings emerge with cotyledons; first true leaves appear within 1-2 weeks. Plants are delicate and pale green.

Keep soil warm (75-85°F) and moist. Provide bright light to prevent stretching. Maintain 12-16 hour photoperiod with grow lights if needed.

Vegetative Growth

4-6 weeks

Plant develops multiple stems and increasingly compound leaves. Bushy growth forms with no flowers yet. Stem thickens and becomes woody.

Maintain consistent warmth and moisture. Begin fertilizing with balanced NPK (10-10-10) every 2 weeks. Pinch early flower buds to encourage branching. Harden off before transplanting outdoors.

Pre-Flowering to Flowering

3-4 weeks

Small white flowers with yellow stamens appear at leaf nodes. Buds form prolifically along stems.

Switch to higher potassium fertilizer (5-10-10) to support flowering. Maintain warm temperatures (70-85°F days, 60-70°F nights). Ensure consistent watering and humidity. Hand-pollinate flowers in low-bee environments by shaking plant in morning.

Fruit Development & Maturation

4-6 weeks per fruit

Flowers set fruit that develops from tiny green peppers to full-sized bright yellow or golden peppers. Peppers hang pendulously from branches.

Continue potassium-rich fertilizing every 2-3 weeks. Support heavily laden branches with stakes or string. Mulch around base to maintain soil moisture and temperature. Ensure good air circulation to prevent disease.

Harvest & Continued Production

8-12 weeks (ongoing in season)

Peppers reach mature yellow color and develop full flavor. Plant continues flowering and fruiting if conditions remain favorable, producing multiple flushes.

Harvest regularly to encourage more production. Pick peppers when fully colored for best flavor complexity. Continue fertilizing and watering. In warm climates, plants may produce for 6-12 months.

Companion Planting

Plan your garden →

Plant with:

Basil Onion Garlic Oregano Marigold Nasturtium Borage

Avoid planting near:

Fennel Kohlrabi Brassicas (in some contexts)

Common Pests

Increase humidity and mist foliage; use neem oil or insecticidal soap; introduce predatory mites in greenhouse settings
Spray with strong water stream; apply neem oil or insecticidal soap; encourage beneficial insects like ladybugs
Use yellow sticky traps; spray neem oil or insecticidal soap; increase air circulation
Remove and destroy infested fruit; use pheromone traps; apply spinosad if severe; practice crop rotation
Improve air circulation; reduce humidity; apply sulfur dust or potassium bicarbonate; remove infected leaves

Uses

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Traditional Peruvian Dishes

Culinary

Ají Amarillo is essential to authentic Peruvian cuisine, used to make ají amarillo paste that flavors ceviche, causa limeña, arroz con pollo, and lomo saltado. The pepper's fruity, moderately hot flavor adds depth and warmth to traditional dishes. [source]

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Sauces and Pastes

Culinary

Roasted and blended ají amarillo creates vibrant golden sauces and creamy pastes that complement seafood, chicken, and potatoes. The peppers can also be dried and ground into powder for long-term storage. [source]

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Digestive and Nutritional Support

Medicinal

Rich in vitamin C and carotenoids, ají amarillo supports immune function and provides antioxidants. Capsaicin in the peppers may support digestion and metabolism. [source]

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Preservation and Storage

Household

Peppers can be dried, frozen, or made into preserves for year-round use. Roasting and freezing in portions allows convenient access to fresh flavor for cooking. [source]

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Pollinator Attraction

Wildlife

The white flowers attract bees and other pollinators to the garden, supporting broader ecosystem health and increasing fruit set. [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 when peppers reach full yellow-golden color for best fruity flavor; typically 90+ days after transplant. Use scissors or pruners to cut peppers cleanly from stem. Can be harvested green but flavor develops fully at mature yellow stage. Harvest regularly to encourage continued production. Morning harvest yields crispest peppers.

Fun Facts

🌱 Ají Amarillo translates to 'yellow chili' and has been cultivated in Peru and Ecuador for centuries, with evidence of its use dating back to pre-Incan civilizations.
🌱 Unlike many chili peppers that change from green to red, ají amarillo ripens to a distinctive golden-yellow color, making it easily identifiable and visually striking in the garden.
🌱 The pepper is so integral to Peruvian identity that it's sometimes called 'liquid gold' in Peruvian cooking, and the search for authentic ají amarillo has driven many international chefs to grow their own.

Gardening Terms

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

Full Sun Heirloom Mulch pH Transplant True Leaves

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