When to Plant Grape Tomato in Honolulu, Hawaii (96821)

Location

Honolulu, Hawaii

ZIP Code

96821

USDA Zone

12b

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, November 20, 2025

Transplant Outdoors Thursday, January 15, 2026

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

🌿 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 Honolulu?

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

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🤝 Good Companions

BasilCarrotParsleyMarigold

⚠️ Avoid Planting Near

BrassicasFennelCorn

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Growing Grape Tomato in Zone 12b

Grape Tomato (Solanum lycopersicum) is a popular garden vegetable. In Honolulu, Hawaii, which is in USDA Hardiness Zone 12b, 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.