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When to Plant Bee Balm in Green Lake County, WI

Green Lake County, Wisconsin Zone 4b April

What to do in April

Your garden in Green Lake County, Wisconsin is working on a schedule, even when you're not. Here's where you should be this April.

Avg. last frost April 27
Avg. first frost October 14
Soil temp (4") 40°F
Watering Moderate
Pest pressure Low
Daylight 13.2 hrs
Looking ahead to May
  • Transplants going out: 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.

Green Lake County, Wisconsin is in USDA Zone 4b. The average last spring frost is April 27 and the first fall frost is October 14, giving you a growing season of approximately 170 days.

At an elevation of 592 feet, Green Lake County receives approximately 32.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Bee Balm to ensure they mature before fall.

Green Lake County, WI (Zone 4b) Moderate season
170 days
Last Spring Frost April 27
170 growing days
First Fall Frost October 14

Green Lake County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (14 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 30 – Sep 24
Recommended (50%) ✓ Fits season (16 days to spare)
Transplant: May 4 🍅 Harvest: Aug 3 – Sep 28
Safe Start (90%) ✓ Fits season (14 days to spare)
Transplant: May 19 🍅 Harvest: Aug 18 – Oct 13

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 Green Lake County

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

Soil pH

Your soil pH (6.2–7.1) overlaps with Bee Balm's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (5.2%) — Bee Balm will thrive.

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
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 349 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 1.5" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 3.8" 0.5" 💧 Light watering
Jul 4.3" 4" 0.3" 💧 Light watering
Aug 4.3" 3.3" 1" 💧 Light watering
Sep 4.3" 3.1" 1.2" 💧 Light watering
Oct 4.3" 2.4" 1.9" 💧 Light watering
Nov 2.1" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Green Lake 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 ~1,365 GDD — county provides 2,210 GDD Excellent fit

Bee Balm Planting Timeline — Green Lake County, WI

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors May 4 May 4 – May 18
Harvest August 3 Aug 3 – Sep 28

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

170 days in Green Lake County

Growing Tips for Bee Balm in Green Lake County

Direct sow Bee Balm outdoors after April 27 in Green Lake 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 Green Lake County, WI?

Green Lake County is in Zone 4b with an average last frost of April 27. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Green Lake County, WI?

Green Lake County, Wisconsin is in USDA Hardiness Zone 4b. The average last spring frost is April 27 and first fall frost is October 14.

🌱

Your Green Lake County Garden Planner — Free

A 24-page printable planner built for Green Lake County (Zone 4b). 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 Green Lake County, WI. Local conditions may vary. Last updated: April 2026.

Sources & credits

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