When to plant Bee Balm in Itasca County, MN
Plant Bee Balm in Itasca County during the brief May 17–May 31 window. With 144 frost-free days, fall plantings can't mature before October 1.
When to Plant Bee Balm in Itasca County, MN
July in Itasca County, Minnesota — your action list
Welcome to July in Zone 4a. These are the moves that will have the biggest impact on your growing season.
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.
Itasca County, Minnesota is in USDA Zone 4a. The average last spring frost is May 10 and the first fall frost is October 1, giving you a growing season of approximately 144 days.
At an elevation of 506 feet, Itasca County receives approximately 40.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Bee Balm to ensure they mature before fall.
Itasca County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7.3
Drainage
Well Drained
Bee Balm Planting Risk Windows
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 Itasca County
How your county's soil matches Bee Balm's growing requirements.
Soil pH
Your soil pH (6.0–7.3) overlaps with Bee Balm's range (6.0–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Itasca 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
Bee Balm Water Budget
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 | — | 1.7" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 2.4" | 0" | ❄️ Dormant |
| Apr | — | 3.5" | 0" | ❄️ Dormant |
| May | 4.3" | 5" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 4.7" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| Oct | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| Nov | — | 3.2" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Itasca 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 Planting Timeline — Itasca County, MN
Bee Balm Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 17 | May 17 – May 31 |
| Harvest | August 16 | Aug 16 – Oct 11 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| 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 4a
📆 Growing Season
144 days in Itasca County
Growing Tips for Bee Balm in Itasca County
Direct sow Bee Balm outdoors after May 10 in Itasca 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 →
Bee Balm in Other Locations
Frequently Asked Questions
When should I plant Bee Balm in Itasca County, MN?
Itasca County is in Zone 4a with an average last frost of May 10. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.
What planting zone is Itasca County, MN?
Itasca County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 10 and first fall frost is October 1.
When should I plant Bee Balm in Itasca County, MN?
In Itasca County, MN, plant Bee Balm after the last frost (around May 10) and before the first frost (around October 1). Best results when soil holds above 50°F.
What growing zone is Itasca County, MN for Bee Balm?
Itasca County sits in USDA Zone 4a. Bee Balm grows reliably in zones 3a through 9b, so it's a good fit here.
Can Bee Balm grow in Itasca County's climate?
Yes — Bee Balm grows well in Itasca County's temperate climate. Itasca County averages a 144-day frost-free season, with last frost around May 10 and first frost around October 1.
Your Itasca County Garden Planner — Free
A 22-page printable planner built for Itasca County (Zone 4a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.