How to Grow Hawaiian Chili Pepper

Wikimedia Commons

Hawaiian Chili Pepper

Capsicum annuum var. annuum

vegetable

Hawaiian chili peppers are small, ornamental yet productive hot peppers native to Hawaii, known for their intense heat and fruity flavor. These compact plants produce abundant small, pointed fruits that ripen from green to red. They are popular in Hawaiian cuisine and as ornamental houseplants.

When should you plant Hawaiian Chili Pepper in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Hawaiian Chili Pepper timeline →

Example Hawaiian Chili Pepper timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Hawaiian Chili Pepper

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Hawaiian Chili Pepper

    Around Jul 16

    ≈ 90 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Hawaiian Chili Pepper dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 8+ hours daily for best heat and fruit production
💧
Water: Keep soil consistently moist but not waterlogged; water deeply when top inch is dry. Reduce watering in winter. More frequent watering needed in hot, dry climates.
📏
Spacing: 18 inches
📅
Days to maturity: 90-120 days from transplant to first harvest
🌱
Planting depth: 0.25 inches for seeds; transplants at soil level

Soil

Type: Well-draining loamy soil rich in organic matter
pH: 6.0-6.8
Amendments:
compost peat moss perlite aged manure

Growing Zones

Find your zone →

Thrives in zones 9-12; grow as annuals in cooler zones or in containers indoors

9a 9b 10a 10b 11a 11b 12a 12b

Sign up free to see if Hawaiian Chili Pepper grows in your zone — and get a personalized planting timeline.

Get my Hawaiian Chili Pepper timeline →

Growth Stages

1

Seedling

3-4 weeks

Small plants with 2-4 true leaves, delicate and tender

Keep soil warm (70-80°F), maintain consistent moisture, provide bright light. Protect from cold drafts.

2

Vegetative Growth

4-6 weeks

Bushy compact plant developing multiple stems and leaves, no flowers yet

Maintain warm temperatures (70-85°F), water regularly, fertilize weekly with balanced fertilizer, pinch tips to encourage branching

3

Flowering

4-6 weeks

Small white flowers appear along stems in clusters

Continue regular watering and feeding, ensure good air circulation, maintain warm temperatures. Hand-pollinate if indoors.

4

Fruiting

4-8 weeks per fruit cycle

Fruits develop rapidly from flowers, progressing from green to red as they mature

Maintain consistent watering, fertilize every 2 weeks with higher potassium formula, support heavy fruit loads with stakes if needed

5

Harvest & Maintenance

Ongoing until frost

Mature red peppers ready for picking; plant continues producing new flowers and fruit

Harvest regularly to encourage more fruit production, continue fertilizing and watering, plants can produce for 12+ months in warm climates

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

fennel kohlrabi cabbage brassicas

Common Pests

  • Spray with water to dislodge, use neem oil, increase humidity, introduce predatory mites

  • Spray with insecticidal soap, neem oil, or strong water spray; encourage beneficial insects

  • Use yellow sticky traps, spray with neem oil or insecticidal soap, introduce parasitic wasps

  • Remove affected leaves, spray with neem oil, use blue sticky traps, maintain good air circulation

  • Remove infested fruits immediately, use insecticides if needed, practice crop rotation

Uses

🍳

Hot Spice & Condiments

Culinary

Hawaiian chili peppers are extremely hot (100,000+ Scoville units) and used in traditional Hawaiian condiments, hot sauces, and to add intense heat to dishes. They provide fruity flavor notes along with their significant heat. [source]

🍳

Salt Seasoning Mix

Culinary

Dried Hawaiian peppers can be ground into spice blends, mixed with sea salt for a gourmet seasoning, or used as a finishing spice for meats and vegetables. [source]

🏠

Ornamental Plant

Household

The abundant small red peppers against green foliage make these plants highly decorative for patios, balconies, and indoor windowsills. They are popular as long-lived houseplants. [source]

💊

Digestive & Pain Relief

Medicinal

Capsaicin in hot peppers supports digestive function and has been traditionally used in topical applications for pain relief. Research suggests capsaicin has anti-inflammatory properties. [source]

🎨

Dried Pepper Decoration

Craft

Dried Hawaiian chili peppers create attractive decorative strings (ristras) or arrangements for kitchens, and can be preserved long-term for year-round use. [source]

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

Harvest Tips

Pick peppers when green for milder heat or allow to fully ripen to red for maximum heat and flavor. Use sharp scissors or pruners to cut peppers, leaving some stem on the plant. Harvest regularly to encourage continued flowering. Peak production occurs in warm weather.

Fun Facts

  • 🌱 Hawaiian chili peppers are among the hottest peppers in the world, rating 100,000-350,000 Scoville Heat Units, making them significantly hotter than jalapeños.
  • 🌱 These peppers are called 'ahi peppers' in Hawaii and have been cultivated there for generations, becoming an integral part of traditional Hawaiian cuisine.
  • 🌱 A single Hawaiian chili pepper plant can produce hundreds of peppers in a season and can live for many years, continuing to produce prolifically in warm climates.

Gardening Terms

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

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Hawaiian Chili Pepper planting timeline

Tell us your zip code and we'll calculate exactly when to start Hawaiian Chili Pepper seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Hawaiian Chili Pepper timeline →