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When to plant Mint in Sherburne County County,

Sherburne County County's short 158-day growing season means one Mint planting between May 8 and May 22. No fall crop in Zone 4b.

When to Plant Mint in Sherburne County, MN

Mint
Sherburne County, Minnesota Zone 4b June

Your June gardening checklist

Here's what deserves your attention in Sherburne County, Minnesota this month. Everything below is tailored to Zone 4b and timed around your local frost dates.

Avg. last frost May 1
Avg. first frost October 6
Soil temp (4") 65°F
Watering Low
Pest pressure High
Daylight 15.5 hrs
To set up a strong July, finish these tasks
  • First harvests: mint

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Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.

Sherburne County, Minnesota is in USDA Zone 4b. The average last spring frost is May 1 and the first fall frost is October 6, giving you a growing season of approximately 158 days.

At an elevation of 568 feet, Sherburne County receives approximately 38.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Mint to ensure they mature before fall.

Sherburne County, MN (Zone 4b) Moderate season
158 days
Last Spring Frost May 1
158 growing days
First Fall Frost October 6
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Sherburne County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7.1

Drainage

Well Drained

Mint Planting Risk Windows

Early Start (70% safe) ✓ Fits season (16 days to spare)
Transplant: May 2 🍅 Harvest: Jul 4 – Sep 12
Recommended (50%) ✓ Fits season (18 days to spare)
Transplant: May 8 🍅 Harvest: Jul 10 – Sep 18
Safe Start (90%) ✓ Fits season (14 days to spare)
Transplant: May 25 🍅 Harvest: Jul 27 – Oct 5

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 Sherburne County

How your county's soil matches Mint's growing requirements.

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is moderate (3.8%). Annual compost additions will help Mint.

How to Plant Mint

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

Succession Planting Mint

3
successive plantings in your 158-day season

Sow every 6.9 weeks. Last sowing by Jul 08 to harvest before frost.

Mint Water Budget

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

Monthly Watering Guide for Mint

Mint needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Mint Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 3" 4.2" 0" ✅ Rainfall sufficient
Jun 3" 4.9" 0" ✅ Rainfall sufficient
Jul 3" 4.1" 0" ✅ Rainfall sufficient
Aug 3" 4.1" 0" ✅ Rainfall sufficient
Sep 3" 3.4" 0" ✅ Rainfall sufficient
Oct 3" 2.8" 0.2" 💧 Light watering
Nov 2.7" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Mint 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.

Mint needs ~862 GDD — county provides 1,817 GDD Excellent fit

Mint Planting Timeline — Sherburne County, MN

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors May 8 May 8 – May 22
Harvest July 10 Jul 10 – Sep 18

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 4b

📆 Growing Season

158 days in Sherburne County

Growing Tips for Mint in Sherburne County

Direct sow Mint outdoors after May 01 in Sherburne County when soil has warmed and frost danger has passed.

General growing tips

Always grow mint in containers or with underground barriers to control spreading. Harvest regularly to keep plants compact. Cut plants back in late summer for a fresh fall flush.

Companion Planting

Good Companions

Avoid Planting Near

  • Parsley

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mint in Sherburne County, MN?

Sherburne County is in Zone 4b with an average last frost of May 1. Plan your Mint planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sherburne County, MN?

Sherburne County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 1 and first fall frost is October 6.

When should I plant Mint in Sherburne County, ?

In Sherburne County, , plant Mint after the last frost (around May 1) and before the first frost (around October 6). Best results when soil holds above 50°F.

What growing zone is Sherburne County, for Mint?

Sherburne County sits in USDA Zone 4b. Mint grows reliably in zones 3a through 10b, so it's a good fit here.

Can Mint grow in Sherburne County's climate?

Yes — Mint grows well in Sherburne County's temperate climate. Sherburne County averages a 158-day frost-free season, with last frost around May 1 and first frost around October 6.

🌱

Your Sherburne County Garden Planner — Free

A 22-page printable planner built for Sherburne 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 Sherburne County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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