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Lemon Balm Planting Guide

May

Your May guide to lemon balm

lemon balm rewards gardeners who pay attention to a few basics. Here's what matters in May, wherever you're growing.

Sun partial shade
Water moderate
Days to harvest 60–70
Plant depth 0.5″
Spacing 8″
  1. How to water lemon balm

    About an inch of water a week keeps lemon balm happy. Check your weather forecast before watering — skip if rain is coming.

  2. Where to put lemon balm

    South-facing beds are ideal for lemon balm. Shade from nearby trees or fences costs real production.

  3. Check your local forecast before planting

    Your zone determines the exact week to plant lemon balm. Pick your county below and we'll line everything up against your frost dates.

Your lemon balm planting calendar by county →

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.

Melissa officinalis · Herb · Lamiaceae family · 60–70 days to maturity

Get Your Personalized Lemon Balm Planting Dates

Enter your ZIP code to see exact planting dates, soil compatibility, and growing tips specific to your county.

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Where Can You Grow Lemon Balm?

Lemon Balm Growing Regions

Click any state to see the Lemon Balm planting schedule for that location.

Planting Dates by Zone

Zone Start Indoors Direct Sow Transplant Harvest
Zone 3a May 22 Jul 24 – Sep 11
Zone 3b May 17 Jul 19 – Sep 6
Zone 4a May 13 Jul 15 – Sep 2
Zone 4b May 8 Jul 10 – Aug 28
Zone 5a May 2 Jul 4 – Aug 22
Zone 5b Apr 25 Jun 27 – Aug 15
Zone 6a Apr 17 Jun 19 – Aug 7
Zone 6b Apr 10 Jun 12 – Jul 31
Zone 7a Apr 1 Jun 3 – Jul 22
Zone 7b Mar 25 May 27 – Jul 15
Zone 8a Mar 15 May 17 – Jul 5
Zone 8b Mar 4 May 6 – Jun 24
Zone 9a Feb 17 Apr 21 – Jun 9
Zone 9b Feb 1 Apr 5 – May 24
Why are some columns showing "—"?

Start Indoors shows "—" because Lemon Balm is typically direct sown outdoors rather than started indoors. It germinates quickly and doesn't transplant well.

Direct Sow shows "—" because Lemon Balm benefits from being started indoors first, then transplanted after the last frost.

How to Plant Lemon Balm

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

Water when the top inch of soil feels dry. Consistent moisture produces the best results.

🧪 Soil pH

5.5 – 7.5

Prefers neutral to slightly acidic soil — ideal for most garden beds.

🗺️ Hardiness Zones

Zone 3a – 9b

📅 Days to Maturity

60–70 days

Quick-growing crop. Multiple plantings per season are possible.

👪 Plant Family

Lamiaceae

Rotate with other families yearly to prevent soil-borne diseases. Don't plant in the same spot where Lamiaceae family crops grew last year.

Succession Planting Lemon Balm

Lemon Balm matures in just 60–70 days, making it ideal for succession planting. In a typical 180-day growing season, you can get up to 3 successive plantings by sowing every 6.9 weeks.

Your actual succession count depends on your local frost dates. Enter your ZIP code to get personalized succession planting dates for your area.

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Companion Planting for Lemon Balm

✅ Good Companions

Check more combinations with our Companion Planting Checker →

Growing Tips for Lemon Balm

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

Saving Lemon Balm Seeds

Recommended for Your Garden

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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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Lemon Balm by State

Frequently Asked Questions

How long does it take to grow Lemon Balm?

Lemon Balm (Melissa officinalis) takes 60 to 70 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.

What zones can Lemon Balm grow in?

Lemon Balm can be grown in USDA zones 3a through 9b. Use the planting calendar above to find the exact dates for your zone.

How much sun does Lemon Balm need?

Growing Lemon Balm requires Partial Shade (3-6 hours), Moderate — regular watering, and soil pH of 5.5 to 7.5.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.