When to Plant Bee Balm in Montrose, California (91021)

Location

Montrose, California

ZIP Code

91021

USDA Zone

10a

Last Frost

Sunday, January 25, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Sunday, November 30, 2025

Transplant Outdoors

Sunday, February 8, 2026

Based on last frost Sunday, January 25, 2026 · Zone 10a

Pro tip: Start Bee Balm seeds indoors 8 weeks before your last frost date, then transplant outdoors around Sunday, February 8, 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 Montrose?

Get your seeds now so they're ready by Sunday, November 30, 2025.

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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 Montrose, California? +

In Montrose (Zone 10a), start Bee Balm seeds indoors around Sunday, November 30, 2025 and transplant outdoors around Sunday, February 8, 2026.

What is the last frost date for Montrose, California? +

The average last spring frost date for Montrose, California (ZIP 91021) is around Sunday, January 25, 2026. This is based on NOAA climate normals for USDA Zone 10a.

How long does Bee Balm take to grow? +

Bee Balm typically matures in about 365 days from transplanting. In Montrose, that means you can expect harvest around Sunday, February 8, 2026 plus 365 days.

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

Bee Balm should be started indoors 8 weeks before your last frost date. In Montrose, that means starting around Sunday, November 30, 2025.

📚 More Bee Balm Planting Guides

🗺️

Bee Balm in California

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 10a Bee Balm Guide

All cities in your zone · Avg dates

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Other Plants for Montrose

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Growing Bee Balm in Zone 10a

Bee Balm (Monarda didyma) is a popular garden vegetable. In Montrose, California, which is in USDA Hardiness Zone 10a, you should start seeds indoors around Sunday, November 30, 2025.

Your average last frost date is Sunday, January 25, 2026. Plan to transplant your Bee Balm seedlings outdoors around Sunday, February 8, 2026, about 2 weeks after your last frost date.