📍 Haiku, HI · Zone 12a · Last frost Thursday, January 1, 2026
✏️ ChangeWhen to Plant Mâche 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, November 20, 2025
Based on last frost Thursday, January 1, 2026 · Zone 12a
Pro tip: Sow Mâche directly outdoors 6 weeks before your last frost date.
🌿 Plant Details
☀️ Growing Requirements
☀️
Sun
Partial Shade to Full Sun
💧
Water
Moderate (1 inch/week)
↔️
Spacing
4" apart
🌱
Planting Depth
0.25" deep
Seeds typically germinate in 7-14 days
Ready to Plant Mâche in Haiku?
Get your seeds now so they're ready by Thursday, November 20, 2025.
* Affiliate links — we may earn a small commission at no extra cost to you.
🤝 Good Companions
Full Companion Planting Guide for Mâche
See which plants help Mâche thrive, which to keep away, and raised bed layout tips →
🛠️ Supplies You'll Need
* Affiliate links — we may earn a small commission at no extra cost to you.
🌾 Seed Saving Guide
🟢 EasyWhen to Harvest Seed
Allow plants to flower and seed pods to dry on the plant.
Processing
Thresh dried plants over a bowl, separate seeds from chaff by winnowing.
Seed Viability
Up to 3 years when stored cool, dark, and dry.
Pro Tip
Mâche self-sows freely — allow some plants to go to seed in place for a perpetual crop.
Raised Bed Planting Guides
A 4×8 bed fits 9 per sq ft of Mâche. See plant counts, spacing grids, and companion pairings for every bed size →
Frequently Asked Questions
When should I plant Mâche in Haiku, Hawaii? +
In Haiku (Zone 12a), direct sow Mâche outdoors around Thursday, November 20, 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 Mâche take to grow? +
Mâche typically matures in about 45 days from direct sowing. In Haiku, that means you can expect harvest around Thursday, November 20, 2025 plus 45 days.
Should I start Mâche indoors or direct sow in Hawaii? +
Mâche does best when direct sown outdoors. In Haiku, sow directly around Thursday, November 20, 2025.
Other Plants for Haiku
Growing Mâche in Zone 12a
Mâche (Valerianella locusta) is a popular garden vegetable. In Haiku, Hawaii, which is in USDA Hardiness Zone 12a, you should direct sow seeds around Thursday, November 20, 2025.
Your average last frost date is Thursday, January 1, 2026. Mâche grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.