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When to Plant Bee Balm in Harrison County, MS

Harrison County, Mississippi Zone 9a May

Top priorities for Harrison County, Mississippi gardeners in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Harrison County, Mississippi.

Avg. last frost March 4
Avg. first frost November 26
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
To set up a strong June, finish these tasks
  • First harvests: bee balm

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Bee balm is a native perennial herb with shaggy, scarlet flower heads that attract hummingbirds, bees, and butterflies. Its leaves make an aromatic tea reminiscent of Earl Grey.

Harrison County, Mississippi is in USDA Zone 9a. The average last spring frost is March 4 and the first fall frost is November 26, giving you a growing season of approximately 267 days.

At an elevation of 190 feet, Harrison County receives approximately 53 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Bee Balm may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Bee Balm will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bee Balm root diseases.

Harrison County, MS (Zone 9a) Long season
267 days
Last Spring Frost March 4
267 growing days
First Fall Frost November 26

Harrison County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Transplant: Feb 25 🍅 Harvest: May 27 – Aug 12
Recommended (50%) ✓ Fits season (92 days to spare)
Transplant: Mar 11 🍅 Harvest: Jun 10 – Aug 26
Safe Start (90%) ✓ Fits season (91 days to spare)
Transplant: Apr 2 🍅 Harvest: Jul 2 – Sep 17

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Harrison County

How your county's soil matches Bee Balm's growing requirements.

Soil pH

Your soil pH (4.8–6.2) is more acidic than Bee Balm prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Harrison County warms quickly in spring but drains fast. Bee Balm will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Bee Balm.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Bee Balm.

How to Plant Bee Balm

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Bee Balm

Bee Balm needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Bee Balm Needs Rainfall You Supplement Action
Jan 4.1" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.3" 4.9" 0" ✅ Rainfall sufficient
Apr 4.3" 3.8" 0.5" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 6.3" 0" ✅ Rainfall sufficient
Aug 4.3" 4.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 4.3" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Harrison County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Bee Balm Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Bee Balm needs ~2,310 GDD — county provides 5,874 GDD Excellent fit

Bee Balm Planting Timeline — Harrison County, MS

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors March 11 Mar 11 – Mar 25
Harvest June 10 Jun 10 – Aug 26

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

267 days in Harrison County

Growing Tips for Bee Balm in Harrison County

Direct sow Bee Balm outdoors after March 04 in Harrison County when soil has warmed and frost danger has passed.

Sandy soil in Harrison County dries quickly — mulch Bee Balm with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Harrison County, provide afternoon shade for Bee Balm and water deeply in the morning.

General growing tips

Start from seed, divisions, or transplants. Provide good air circulation to prevent powdery mildew. Deadhead spent flowers for reblooming. Divide clumps every 3 years.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bee Balm in Harrison County, MS?

Harrison County is in Zone 9a with an average last frost of March 4. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Harrison County, MS?

Harrison County, Mississippi is in USDA Hardiness Zone 9a. The average last spring frost is March 4 and first fall frost is November 26.

🌱

Your Harrison County Garden Planner — Free

A 24-page printable planner built for Harrison County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Harrison County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

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