When to Plant Fava Bean in Walpole, New Hampshire (03608)

Location

Walpole, New Hampshire

ZIP Code

03608

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Saturday, March 28, 2026

Based on last frost Saturday, April 25, 2026 · Zone 5b

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

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🌿 Plant Details

Scientific Name Vicia faba

Days to Maturity 85 days

Mature Height 24-48"

Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

6" apart

🌱

Planting Depth

2" deep

Seeds typically germinate in 7-14 days

Ready to Plant Fava Bean in Walpole?

Get your seeds now so they're ready by Saturday, March 28, 2026.

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🤝 Good Companions

CarrotPotatoBeetSpinach

⚠️ Avoid Planting Near

OnionGarlicFennel

🤝

Full Companion Planting Guide for Fava Bean

See which plants help Fava Bean 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

Allow pods to dry completely on the plant and turn black.

Processing

Shell dried pods, cure seeds on a screen for 2 weeks, then store in a cool dry place.

Seed Viability

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

Pro Tip

Fava beans can cross-pollinate via insects — isolate by 300 feet from other fava varieties to keep pure.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Fava Bean in Walpole, New Hampshire? +

In Walpole (Zone 5b), direct sow Fava Bean outdoors around Saturday, March 28, 2026.

What is the last frost date for Walpole, New Hampshire? +

The average last spring frost date for Walpole, New Hampshire (ZIP 03608) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Fava Bean take to grow? +

Fava Bean typically matures in about 85 days from direct sowing. In Walpole, that means you can expect harvest around Saturday, March 28, 2026 plus 85 days.

Should I start Fava Bean indoors or direct sow in New Hampshire? +

Fava Bean does best when direct sown outdoors. In Walpole, sow directly around Saturday, March 28, 2026.

📚 More Fava Bean Planting Guides

🗺️

Fava Bean in New Hampshire

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5b Fava Bean Guide

All cities in your zone · Avg dates

→

Other Plants for Walpole

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Growing Fava Bean in Zone 5b

Fava Bean (Vicia faba) is a popular garden vegetable. In Walpole, New Hampshire, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, March 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Fava Bean grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.