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When to Plant Garlic in Medicine Hat, AB

Garlic

Garlic is a pungent allium planted in fall and harvested the following summer. Hardneck varieties produce edible flower stalks (scapes) and are more cold-hardy.

Medicine Hat, Alberta is in USDA Zone 5a. The average last spring frost is May 6 and the first fall frost is October 13, giving you a growing season of approximately 160 days.

At an elevation of 2,352 feet, Medicine Hat receives approximately 28.3 inches of rainfall annually with predominantly dark brown chernozem soil. Summer highs average 78°F, so choose short-season varieties of Garlic to ensure they mature before fall.

Medicine Hat, AB (Zone 5a) Moderate season
160 days
Last Spring Frost May 6
160 growing days
First Fall Frost October 13

Medicine Hat Soil Profile

Soil Type

Dark Brown Chernozem

Soil pH

6.0-7.0

Drainage

Well Drained

Garlic Planting Timeline — Medicine Hat, AB

Garlic Planting Calendar

Activity When Date Range
Harvest December 1 Dec 1 – Feb 16
Fall Sowing September 1 Sep 1 – Sep 15

Plant 1" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Harvest
February Harvest
March
April
May
June
July
August
September Fall Sowing
October
November
December Harvest

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–240 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 5a

📆 Growing Season

160 days in Medicine Hat

Growing Tips for Medicine Hat

Plant individual cloves pointed end up in fall, 6 weeks before ground freezes. Mulch heavily with straw. Harvest when lower leaves begin to brown but 5-6 green leaves remain.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans
  • Asparagus

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Garlic in Medicine Hat, AB?

Medicine Hat is in Zone 5a with an average last frost of May 6. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.

What planting zone is Medicine Hat, AB?

Medicine Hat, Alberta is in USDA Hardiness Zone 5a. The average last spring frost is May 6 and first fall frost is October 13.

🌱

Your Medicine Hat Garden Planner — Free

A 22-page printable planner built for Medicine Hat (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Medicine Hat, AB. 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.