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When to plant Bee Balm in Frederick County, MD

Frederick County sits in cold Zone 7a. Plant Bee Balm April 23–May 7 for the single annual harvest; the October 23 first frost closes the window.

When to Plant Bee Balm in Frederick County, MD

Frederick County, Maryland Zone 7a June

Your June gardening checklist

A quick June briefing for Frederick County, Maryland gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 16
Avg. first frost October 23
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.8 hrs

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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.

Frederick County, Maryland is in USDA Zone 7a. The average last spring frost is April 16 and the first fall frost is October 23, giving you a growing season of approximately 190 days.

At an elevation of 756 feet, Frederick County receives approximately 49.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Bee Balm during the growing season.

Frederick County, MD (Zone 7a) Moderate season
190 days
Last Spring Frost April 16
190 growing days
First Fall Frost October 23

Frederick County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Bee Balm Planting Risk Windows

Early Start (70% safe) ✓ Fits season (13 days to spare)
Transplant: Apr 19 🍅 Harvest: Jul 19 – Oct 4
Recommended (50%) ✓ Fits season (15 days to spare)
Transplant: Apr 23 🍅 Harvest: Jul 23 – Oct 8
Safe Start (90%) ✓ Fits season (2 days to spare)
Transplant: May 17 🍅 Harvest: Aug 16 – Nov 1

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 Frederick County

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

Soil pH

Your soil pH (5.3–6.8) overlaps with Bee Balm's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Frederick County is excellent for Bee Balm — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Bee Balm.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Bee Balm.

How to Plant Bee Balm

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

Bee Balm Water Budget

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

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 3.3" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 3.8" 0" ❄️ Dormant
Apr 4.3" 4.9" 0" ✅ Rainfall sufficient
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4" 0.3" 💧 Light watering
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.1" 0" ❄️ Dormant
Dec 4.2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Frederick 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 ~1,759 GDD — county provides 3,182 GDD Excellent fit

Bee Balm Planting Timeline — Frederick County, MD

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 23 Apr 23 – May 7
Harvest July 23 Jul 23 – Oct 8

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July Harvest
August Harvest
September Harvest
October Harvest
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: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

190 days in Frederick County

Growing Tips for Bee Balm in Frederick County

Direct sow Bee Balm outdoors after April 16 in Frederick County when soil has warmed and frost danger has passed.

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 Frederick County, MD?

Frederick County is in Zone 7a with an average last frost of April 16. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Frederick County, MD?

Frederick County, Maryland is in USDA Hardiness Zone 7a. The average last spring frost is April 16 and first fall frost is October 23.

When should I plant Bee Balm in Frederick County, MD?

In Frederick County, MD, plant Bee Balm after the last frost (around April 16) and before the first frost (around October 23). Best results when soil holds above 50°F.

What growing zone is Frederick County, MD for Bee Balm?

Frederick County sits in USDA Zone 7a. Bee Balm grows reliably in zones 3a through 9b, so it's a good fit here.

Can Bee Balm grow in Frederick County's climate?

Yes — Bee Balm grows well in Frederick County's temperate climate. Frederick County averages a 190-day frost-free season, with last frost around April 16 and first frost around October 23.

🌱

Your Frederick County Garden Planner — Free

A 22-page printable planner built for Frederick County (Zone 7a). 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 Frederick County, MD. Local conditions may vary. Last updated: June 2026.

Sources & credits

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