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When to Plant Mint in Arthur County, NE

Arthur County, Nebraska Zone 5b May

What to do in May

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

Avg. last frost May 9
Avg. first frost October 6
Soil temp (4") 56°F
Watering Low
Pest pressure Low
Daylight 14.3 hrs
  1. Move mint from tray to bed

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

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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.

Arthur County, Nebraska is in USDA Zone 5b. The average last spring frost is May 9 and the first fall frost is October 6, giving you a growing season of approximately 150 days.

At an elevation of 728 feet, Arthur County receives approximately 34 inches of rainfall annually with predominantly loam soil. Summer highs average 81°F, so choose short-season varieties of Mint to ensure they mature before fall.

Arthur County, NE (Zone 5b) Moderate season
150 days
Last Spring Frost May 9
150 growing days
First Fall Frost October 6
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Arthur County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (10 days to spare)
Transplant: May 9 🍅 Harvest: Jul 11 – Sep 19
Recommended (50%) ✓ Fits season (10 days to spare)
Transplant: May 16 🍅 Harvest: Jul 18 – Sep 26
Safe Start (90%) ✓ Fits season (6 days to spare)
Transplant: May 29 🍅 Harvest: Jul 31 – Oct 9

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 Arthur County

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

Soil pH

Your soil pH (6.2–7.7) overlaps with Mint's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.7%). Annual compost additions will help Mint.

How to Plant Mint

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

Succession Planting Mint

2
successive plantings in your 150-day season

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

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.0″/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 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 2.1" 0" ❄️ Dormant
Feb 2.2" 0" ❄️ Dormant
Mar 3.4" 0" ❄️ Dormant
Apr 3.6" 0" ❄️ Dormant
May 3" 4.3" 0" ✅ Rainfall sufficient
Jun 3" 2.2" 0.8" 💧 Light watering
Jul 3" 3.2" 0" ✅ Rainfall sufficient
Aug 3" 3.2" 0" ✅ Rainfall sufficient
Sep 3" 2.5" 0.5" 💧 Light watering
Oct 3" 3.2" 0" ✅ Rainfall sufficient
Nov 2.6" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Arthur 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 ~806 GDD — county provides 1,612 GDD Excellent fit

Mint Planting Timeline — Arthur County, NE

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors May 16 May 16 – May 30
Harvest July 18 Jul 18 – Sep 26

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 5b

📆 Growing Season

150 days in Arthur County

Growing Tips for Mint in Arthur County

Direct sow Mint outdoors after May 09 in Arthur 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 Arthur County, NE?

Arthur County is in Zone 5b with an average last frost of May 9. Plan your Mint planting based on this frost date — see the calendar above for exact timing.

What planting zone is Arthur County, NE?

Arthur County, Nebraska is in USDA Hardiness Zone 5b. The average last spring frost is May 9 and first fall frost is October 6.

🌱

Your Arthur County Garden Planner — Free

A 24-page printable planner built for Arthur County (Zone 5b). 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 Arthur County, NE. Local conditions may vary. Last updated: May 2026.

Sources & credits

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