When to Plant Arugula in Keauhou, Hawaii (96739)

Location

Keauhou, Hawaii

ZIP Code

96739

USDA Zone

13a

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Direct Sow Outdoors Thursday, December 4, 2025

Pro Tip: Sow Arugula directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Eruca vesicaria subsp. sativa

Days to Maturity 40 days

Mature Height 6-12"

Spread 6"

Type Leaf

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Regular (keep moist)

↔️

Spacing

6" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 3-7 days

Ready to Plant Arugula in Keauhou?

Get your seeds now so they're ready by Thursday, December 4, 2025.

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Other Plants for Keauhou

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Growing Arugula in Zone 13a

Arugula (Eruca vesicaria subsp. sativa) is a popular garden vegetable. In Keauhou, Hawaii, which is in USDA Hardiness Zone 13a, you should direct sow seeds around Thursday, December 4, 2025.

Your average last frost date is Thursday, January 1, 2026. Arugula grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.