When to Plant Serviceberry in Honolulu, Hawaii (96839)

Location

Honolulu, Hawaii

ZIP Code

96839

USDA Zone

12b

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Direct Sow Outdoors Thursday, December 18, 2025

Pro Tip: Sow Serviceberry directly outdoors 2 weeks before your last frost date.

🌿 Plant Details

Scientific Name Amelanchier canadensis

Days to Maturity 1095 days

Mature Height 60-240"

Spread 120"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

120" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 60-120 days

Ready to Plant Serviceberry in Honolulu?

Get your seeds now so they're ready by Thursday, December 18, 2025.

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Growing Serviceberry in Zone 12b

Serviceberry (Amelanchier canadensis) is a popular garden vegetable. In Honolulu, Hawaii, which is in USDA Hardiness Zone 12b, you should direct sow seeds around Thursday, December 18, 2025.

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