When to Plant Columbine in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Thursday, November 6, 2025

Transplant Outdoors

Thursday, January 15, 2026

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

Pro tip: Start Columbine seeds indoors 8 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 2026.

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🌿 Plant Details

Scientific Name Aquilegia vulgaris

Days to Maturity 365 days

Mature Height 18-36"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 21-30 days

Ready to Plant Columbine in Haiku?

Get your seeds now so they're ready by Thursday, November 6, 2025.

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🤝 Good Companions

FernHostasSpring Bulbs

🤝

Full Companion Planting Guide for Columbine

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🌍 Flower Garden Soil ✂️ Pruning Shears 🚿 Watering Can

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🌾 Seed Saving Guide

🟢 Easy

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow seed pods (follicles) to dry and turn brown on the plant. Harvest before they split.

Processing

Crack dry pods over a bowl to release tiny black seeds. Dry 1 week before storing.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Columbines cross freely between varieties and species — saved seeds often produce beautiful new color combinations.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Columbine in Haiku, Hawaii? +

In Haiku (Zone 12a), start Columbine seeds indoors around Thursday, November 6, 2025 and transplant outdoors around Thursday, January 15, 2026.

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

The average last spring frost date for Haiku, Hawaii (ZIP 96708) is around Thursday, January 1, 2026. This is based on NOAA climate normals for USDA Zone 12a.

How long does Columbine take to grow? +

Columbine typically matures in about 365 days from transplanting. In Haiku, that means you can expect harvest around Thursday, January 15, 2026 plus 365 days.

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

Columbine should be started indoors 8 weeks before your last frost date. In Haiku, that means starting around Thursday, November 6, 2025.

📚 More Columbine Planting Guides

🗺️

Columbine in Hawaii

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 12a Columbine Guide

All cities in your zone · Avg dates

→

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Growing Columbine in Zone 12a

Columbine (Aquilegia vulgaris) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should start seeds indoors around Thursday, November 6, 2025.

Your average last frost date is Thursday, January 1, 2026. Plan to transplant your Columbine seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.