When to Plant Bee Balm in Eagle River, Wisconsin (54521)

Location

Eagle River, Wisconsin

ZIP Code

54521

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Tuesday, March 10, 2026

Transplant Outdoors

Tuesday, May 19, 2026

Based on last frost Tuesday, May 5, 2026 · Zone 4b

Pro tip: Start Bee Balm seeds indoors 8 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 2026.

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🌿 Plant Details

Scientific Name Monarda didyma

Days to Maturity 365 days

Mature Height 24-48"

Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-21 days

Ready to Plant Bee Balm in Eagle River?

Get your seeds now so they're ready by Tuesday, March 10, 2026.

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🤝 Good Companions

TomatoPepperSquash

🤝

Full Companion Planting Guide for Bee Balm

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 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 shaggy seed heads to dry fully on the stem. Harvest before winter winds scatter seeds.

Processing

Break apart dried seed heads over a bowl, separate seeds from chaff.

Seed Viability

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

Pro Tip

Bee balm cross-pollinates between varieties and species — plants from saved seed may show color variation.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 14 plants of Bee Balm. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Bee Balm in Eagle River, Wisconsin? +

In Eagle River (Zone 4b), start Bee Balm seeds indoors around Tuesday, March 10, 2026 and transplant outdoors around Tuesday, May 19, 2026.

What is the last frost date for Eagle River, Wisconsin? +

The average last spring frost date for Eagle River, Wisconsin (ZIP 54521) is around Tuesday, May 5, 2026. This is based on NOAA climate normals for USDA Zone 4b.

How long does Bee Balm take to grow? +

Bee Balm typically matures in about 365 days from transplanting. In Eagle River, that means you can expect harvest around Tuesday, May 19, 2026 plus 365 days.

Should I start Bee Balm indoors or direct sow in Wisconsin? +

Bee Balm should be started indoors 8 weeks before your last frost date. In Eagle River, that means starting around Tuesday, March 10, 2026.

📚 More Bee Balm Planting Guides

🗺️

Bee Balm in Wisconsin

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4b Bee Balm Guide

All cities in your zone · Avg dates

→

Other Plants for Eagle River

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Growing Bee Balm in Zone 4b

Bee Balm (Monarda didyma) is a popular garden vegetable. In Eagle River, Wisconsin, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, March 10, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Bee Balm seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.