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When to plant Mint in Saguache County, CO

In Saguache County, Mint is a single-season spring crop — there's no second fall window. Plant June 6–June 20 for an 60–90-day harvest, finishing well before the September 20 first frost.

When to Plant Mint in Saguache County, CO

Mint

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

Saguache County, Colorado is in USDA Zone 5b. The average last spring frost is May 30 and the first fall frost is September 20, giving you a growing season of approximately 113 days.

At an elevation of 5,293 feet, Saguache County receives approximately 23.7 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Mint to ensure they mature before fall.

Saguache County, CO (Zone 5b) Short season
113 days
Last Spring Frost May 30
113 growing days
First Fall Frost September 20

Saguache County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Mint Planting Timeline — Saguache County, CO

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors June 6 Jun 6 – Jun 20
Harvest August 8 Aug 8 – Oct 17

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

113 days in Saguache County

Growing Tips for Saguache County

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 Saguache County, CO?

Saguache County is in Zone 5b with an average last frost of May 30. Plan your Mint planting based on this frost date — see the calendar above for exact timing.

What planting zone is Saguache County, CO?

Saguache County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 30 and first fall frost is September 20.

When should I plant Mint in Saguache County, CO?

In Saguache County, CO, plant Mint after the last frost (around May 30) and before the first frost (around September 20). Best results when soil holds above 50°F.

What growing zone is Saguache County, CO for Mint?

Saguache County sits in USDA Zone 5b. Mint grows reliably in zones 3a through 10b, so it's a good fit here.

Can Mint grow in Saguache County's climate?

Yes — Mint grows well in Saguache County's temperate climate. Saguache County averages a 113-day frost-free season, with last frost around May 30 and first frost around September 20.

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Your Saguache County Garden Planner — Free

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

Sources & credits

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