When to Plant Grape Tomato 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, November 20, 2025

Transplant Outdoors

Thursday, January 15, 2026

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

Pro tip: Start Grape Tomato seeds indoors 6 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 2026.

Add to Calendar (.ics)

🌿 Plant Details

Scientific Name Solanum lycopersicum

Days to Maturity 65 days

Mature Height 36-60"

Spread 24"

Type Indeterminate

Fruit Size Mini (0.5 oz)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

24" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 5-10 days

Ready to Plant Grape Tomato in Haiku?

Get your seeds now so they're ready by Thursday, November 20, 2025.

🛒 Buy on Amazon 🌿 True Leaf Market

* Affiliate links — we may earn a small commission at no extra cost to you.

🤝 Good Companions

BasilCarrotParsleyMarigold

⚠️ Avoid Planting Near

BrassicasFennelCorn

🤝

Full Companion Planting Guide for Grape Tomato

See which plants help Grape Tomato 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

* Affiliate links — we may earn a small commission at no extra cost to you.

Common Grape Tomato Varieties

Popular cultivars to look for at your local nursery or seed supplier.

Juliet

hybrid 60d

Prolific, crack-resistant grape tomato with sweet flavor and long shelf life.

Red Grape

hybrid 70d

Classic red grape tomato with firm texture and concentrated sweetness.

Valentine

hybrid 55d

Heart-shaped grape tomatoes with exceptional sweetness; highly ornamental.

🌾 Seed Saving Guide

🟢 Easy

⚠️ Many varieties are F1 hybrid — look for OP/heirloom types

When to Harvest Seed

Let fruit ripen fully before extracting seeds.

Processing

Ferment seeds 2–3 days in water, rinse thoroughly, dry flat for 1 week.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Most grape tomatoes are F1 hybrids. Save seed only from open-pollinated varieties for true results.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 8 plants of Grape Tomato. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Grape Tomato in Haiku, Hawaii? +

In Haiku (Zone 12a), start Grape Tomato seeds indoors around Thursday, November 20, 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 Grape Tomato take to grow? +

Grape Tomato typically matures in about 65 days from transplanting. In Haiku, that means you can expect harvest around Thursday, January 15, 2026 plus 65 days.

Should I start Grape Tomato indoors or direct sow in Hawaii? +

Grape Tomato should be started indoors 6 weeks before your last frost date. In Haiku, that means starting around Thursday, November 20, 2025.

📚 More Grape Tomato Planting Guides

🗺️

Grape Tomato in Hawaii

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 12a Grape Tomato 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 Chili Pepper Collard Green Common Bean Cucumber Eggplant Endive Fennel Garlic 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 Grape Tomato in Zone 12a

Grape Tomato (Solanum lycopersicum) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should start seeds indoors around Thursday, November 20, 2025.

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