When to Plant Roma Tomato in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, November 20, 2025

Transplant Outdoors Thursday, January 15, 2026

Pro Tip: Start Roma 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 75 days

Mature Height 30-36"

Spread 18"

Type Determinate

Fruit Size Medium (2-3 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 7-14 days

Ready to Plant Roma Tomato in Haiku?

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

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Growing Roma Tomato in Zone 12a

Roma 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 Roma Tomato seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.