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When to Plant Edamame in Lake Charles, Louisiana (70607)

Location

Lake Charles, Louisiana

ZIP Code

70607

USDA Zone

9b

Last Frost

Tuesday, February 10, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Tuesday, February 24, 2026

Based on last frost Tuesday, February 10, 2026 · Zone 9b

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

🌿 Plant Details

Scientific Name Glycine max
Days to Maturity 80 days
Mature Height 18-30"
Spread 6"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

6" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 6-10 days

Ready to Plant Edamame in Lake Charles?

Get your seeds now so they're ready by Tuesday, February 24, 2026.

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🤝 Good Companions

CornSquashCarrot

⚠️ Avoid Planting Near

OnionGarlicLeek
🤝

Full Companion Planting Guide for Edamame

See which plants help Edamame 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

Let pods mature past the green edamame stage — pods will dry and turn tan on the vine.

Processing

Shell dried pods, cure seeds on a screen for 2 weeks to fully dry.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Soybeans are self-fertile before flowers open — highly recommended as a beginner seed crop.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 4 per sq ft of Edamame. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Edamame in Lake Charles, Louisiana? +

In Lake Charles (Zone 9b), direct sow Edamame outdoors around Tuesday, February 24, 2026.

What is the last frost date for Lake Charles, Louisiana? +

The average last spring frost date for Lake Charles, Louisiana (ZIP 70607) is around Tuesday, February 10, 2026. This is based on NOAA climate normals for USDA Zone 9b.

How long does Edamame take to grow? +

Edamame typically matures in about 80 days from direct sowing. In Lake Charles, that means you can expect harvest around Tuesday, February 24, 2026 plus 80 days.

Should I start Edamame indoors or direct sow in Louisiana? +

Edamame does best when direct sown outdoors. In Lake Charles, sow directly around Tuesday, February 24, 2026.

Other Plants for Lake Charles

Growing Edamame in Zone 9b

Edamame (Glycine max) is a popular garden vegetable. In Lake Charles, Louisiana, which is in USDA Hardiness Zone 9b, you should direct sow seeds around Tuesday, February 24, 2026.

Your average last frost date is Tuesday, February 10, 2026. Edamame grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.