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When to Plant Chervil in Haiku, Hawaii (96708)

Location

Haiku, Hawaii

ZIP Code

96708

USDA Zone

12a

Last Frost

Thursday, January 1, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Thursday, December 4, 2025

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

Pro tip: Sow Chervil directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Anthriscus cerefolium
Days to Maturity 50 days
Mature Height 12-24"
Spread 9"

☀️ Growing Requirements

☀️

Sun

Partial Shade (3-4 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

9" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Chervil in Haiku?

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

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🤝 Good Companions

RadishLettuceBroccoli
🤝

Full Companion Planting Guide for Chervil

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

🛠️ Supplies You'll Need

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🌾 Seed Saving Guide

🟢 Easy
✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Harvest seed heads when dry and light tan — they shatter quickly.

Processing

Cut into a bag, dry briefly, shake to release needle-like seeds.

Seed Viability

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

Pro Tip

Chervil is best sown fresh — seed viability drops significantly after 1 year.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 56 plants of Chervil. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Chervil in Haiku, Hawaii? +

In Haiku (Zone 12a), direct sow Chervil outdoors around Thursday, December 4, 2025.

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 Chervil take to grow? +

Chervil typically matures in about 50 days from direct sowing. In Haiku, that means you can expect harvest around Thursday, December 4, 2025 plus 50 days.

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

Chervil does best when direct sown outdoors. In Haiku, sow directly around Thursday, December 4, 2025.

Other Plants for Haiku

Growing Chervil in Zone 12a

Chervil (Anthriscus cerefolium) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should direct sow seeds around Thursday, December 4, 2025.

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