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When to Plant Lemon Balm in USDA Zone 7b

Lemon balm is a vigorous perennial herb with bright green, lemon-scented leaves. It makes a refreshing tea and is easy to grow but can spread aggressively.

In Zone 7b, the average last spring frost is around March 18 and the first fall frost is around November 8, giving you a growing season of approximately 235 days.

Zone 7b Long season
235 days
Last Spring Frost March 18
235 growing days
First Fall Frost November 8

Lemon Balm Planting Timeline — Zone 7b

Where Is USDA Zone 7b?

The map below highlights the states that contain Zone 7b. Click any state to see the Lemon Balm planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Lemon Balm Planting Calendar — Zone 7b

Activity When Date Range
Transplant Outdoors March 25 Mar 25 – Apr 8
Harvest May 27 May 27 – Jul 15

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August
September
October
November
December

Free Zone 7b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 7b with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate — regular watering

Days to Maturity

60–70 days

Soil pH

5.5 – 7.5

Zone Temperature Range

5°F to 10°F average annual minimum

Growing Season

235 days (Zone 7b average)

Planting Specifications

Planting Depth0.5 inches
Plant Spacing8 inches apart
Row Spacing12 inches between rows

Growing Tips for Zone 7b

Start from seed, cuttings, or divisions. Contain in pots or use barriers to prevent spreading. Harvest frequently to keep plants bushy and prevent flowering.

Companion Planting

Good Companions

Level Up Your Garden

Saving Lemon Balm Seeds

Recommended for Your Garden

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Fabric Grow Bags $10-25

Breathable fabric pots that promote healthy root growth and prevent overwatering.

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Self-Watering Planters $15-40

Built-in reservoir keeps herbs and greens consistently watered with less effort.

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Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

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Frequently Asked Questions

When should I plant Lemon Balm in Zone 7b?

In Zone 7b, plan your Lemon Balm planting around the average last frost date of March 18. Transplant seedlings around March 25.

Can Lemon Balm grow in Zone 7b?

Yes, Lemon Balm can grow well in Zone 7b, hardy in USDA zones 3a through 9b. Zone 7b has a growing season of approximately 235 days, which is sufficient for Lemon Balm (60-70 days to maturity).

When can I harvest Lemon Balm in Zone 7b?

In Zone 7b, expect to harvest Lemon Balm from May 27 – July 15. Lemon Balm takes 60-70 days from planting to harvest.

What is the last frost date for Zone 7b?

The average last spring frost in Zone 7b is around March 18, and the first fall frost is around November 8. This gives a growing season of approximately 235 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Lemon Balm?

Good companion plants for Lemon Balm include Tomatoes, Squash Summer, Cabbage. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — organize your planting dates for Zone 7b, track your crops, and plan your garden season from seed to harvest.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: April 2026.