When to Plant Anise in Honolulu, Hawaii (96821)

Location

Honolulu, Hawaii

ZIP Code

96821

USDA Zone

12b

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Thursday, January 15, 2026

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

Pro tip: Sow Anise directly outdoors 2 weeks after your last frost date — it needs warm soil.

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🌿 Plant Details

Scientific Name Pimpinella anisum

Days to Maturity 75 days

Mature Height 18-24"

Spread 12"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Anise in Honolulu?

Get your seeds now so they're ready by Thursday, January 15, 2026.

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🤝 Good Companions

CorianderCarrot

⚠️ Avoid Planting Near

FennelDillCaraway

🤝

Full Companion Planting Guide for Anise

See which plants help Anise thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟢 Easy

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest seed heads when gray-green to light brown, before they fully dry and shatter.

Processing

Cut seed heads into paper bag, hang dry for 1–2 weeks, then thresh gently.

Seed Viability

Up to 3 years when stored cool, dark, and dry.

Pro Tip

Anise seeds are also a culinary spice — you can save the same seeds you'd use for cooking.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 32 plants of Anise. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Anise in Honolulu, Hawaii? +

In Honolulu (Zone 12b), direct sow Anise outdoors around Thursday, January 15, 2026.

What is the last frost date for Honolulu, Hawaii? +

The average last spring frost date for Honolulu, Hawaii (ZIP 96821) is around Thursday, January 1, 2026. This is based on NOAA climate normals for USDA Zone 12b.

How long does Anise take to grow? +

Anise typically matures in about 75 days from direct sowing. In Honolulu, that means you can expect harvest around Thursday, January 15, 2026 plus 75 days.

Should I start Anise indoors or direct sow in Hawaii? +

Anise does best when direct sown outdoors. In Honolulu, sow directly around Thursday, January 15, 2026.

📚 More Anise Planting Guides

🗺️

Anise in Hawaii

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 12b Anise Guide

All cities in your zone · Avg dates

→

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Growing Anise in Zone 12b

Anise (Pimpinella anisum) is a popular garden vegetable. In Honolulu, Hawaii, which is in USDA Hardiness Zone 12b, you should direct sow seeds around Thursday, January 15, 2026.

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