When to Plant Chili Pepper in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Thursday, October 23, 2025

Transplant Outdoors

Thursday, January 15, 2026

Based on last frost Thursday, January 1, 2026 · Zone 12a

Pro tip: Start Chili Pepper seeds indoors 10 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 2026.

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🌿 Plant Details

Scientific Name Capsicum annuum

Days to Maturity 119 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-28 days

Ready to Plant Chili Pepper in Haiku?

Get your seeds now so they're ready by Thursday, October 23, 2025.

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🤝 Good Companions

BasilRosemaryOreganoParsleyMarjoramTomatoGeraniumPetuniaBell PepperCucumberEggplantEscaroleOkraSwiss ChardSquash

⚠️ Avoid Planting Near

Fennel

🤝

Full Companion Planting Guide for Chili Pepper

See which plants help Chili Pepper thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow peppers to ripen fully to their final color before collecting seeds.

Processing

Remove seeds from ripe pepper, dry flat for 1–2 weeks. Handle hot varieties with gloves.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Peppers cross freely between varieties of the same species. Cage plants or isolate by 300 feet.

Frequently Asked Questions

When should I plant Chili Pepper in Haiku, Hawaii? +

In Haiku (Zone 12a), start Chili Pepper seeds indoors around Thursday, October 23, 2025 and transplant outdoors around Thursday, January 15, 2026.

What is the last frost date for Haiku, Hawaii? +

The average last spring frost date for Haiku, Hawaii (ZIP 96708) is around Thursday, January 1, 2026. This is based on NOAA climate normals for USDA Zone 12a.

How long does Chili Pepper take to grow? +

Chili Pepper typically matures in about 119 days from transplanting. In Haiku, that means you can expect harvest around Thursday, January 15, 2026 plus 119 days.

Should I start Chili Pepper indoors or direct sow in Hawaii? +

Chili Pepper should be started indoors 10 weeks before your last frost date. In Haiku, that means starting around Thursday, October 23, 2025.

📚 More Chili Pepper Planting Guides

🗺️

Chili Pepper in Hawaii

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 12a Chili Pepper Guide

All cities in your zone · Avg dates

→

Other Plants for Haiku

Blackberry Blueberry Raspberry Strawberry Basil Chamomile Chives Cilantro Dill Lavender Lemon Balm Marjoram Mint Oregano Parsley Rosemary Sage Tarragon Thyme Acorn Squash Artichoke Arugula Asparagus Beefsteak Tomato Beet Bell Pepper Bok Choy Broccoli Brussels Sprout Butternut Squash Cabbage Cantaloupe Carrot Cauliflower Cayenne Pepper Celery Cherry Tomato Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic Grape Tomato Green Bean Habanero Pepper Head Lettuce Heirloom Tomato Honeydew Melon Jalapeño Pepper Kale Kohlrabi Leaf Lettuce Leek Lima Bean Mustard Okra Onion Parsnip Pea Poblano Pepper Pole Pea Potato Pumpkin Radicchio Radish Rhubarb Roma Tomato Rutabaga Serrano Pepper Shallot Snap Pea Snow Pea Spaghetti Squash Spinach Squash Sweet Corn Sweet Potato Swiss Chard Tomato Turnip Watermelon Zucchini Sunflower Marigold Zinnia Nasturtium Cosmos Echinacea (Coneflower) Petunia Black-eyed Susan Apple Tree Pear Tree Peach Tree Plum Tree Sweet Cherry Tree Lemon Tree Borage Lemongrass Ginger Stevia Tomatillo Edamame Fava Bean Mâche Mizuna Sorrel Shishito Pepper Banana Pepper Watermelon Radish Napa Cabbage Popcorn Broccoli Raab Catnip Valerian Lemon Verbena Bee Balm Anise Lovage Chervil Summer Savory Dahlia Snapdragon Pansy Sweet Pea Morning Glory Hollyhock Larkspur Bachelor Button Columbine Impatiens Salvia (Annual) Sweet Alyssum Celosia Lupine Verbena Elderberry Grape Vine Red Currant Gooseberry Serviceberry Fig Tree Avocado Tree Persimmon Tree Olive Tree

Growing Chili Pepper in Zone 12a

Chili Pepper (Capsicum annuum) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should start seeds indoors around Thursday, October 23, 2025.

Your average last frost date is Thursday, January 1, 2026. Plan to transplant your Chili Pepper seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.