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When to Plant Corn in Camrose, AB

Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.

Camrose, Alberta is in USDA Zone 4b. The average last spring frost is May 12 and the first fall frost is October 6, giving you a growing season of approximately 147 days.

At an elevation of 2,424 feet, Camrose receives approximately 17.4 inches of rainfall annually with predominantly dark brown chernozem soil. Summer highs average 72°F, so choose short-season varieties of Corn to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Corn successfully. Mulch heavily to conserve soil moisture.

Camrose, AB (Zone 4b) Short season
147 days
Last Spring Frost May 12
147 growing days
First Fall Frost October 6

Camrose Soil Profile

Soil Type

Dark Brown Chernozem

Soil pH

6.0-7.0

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (64 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 12
Recommended (50%) ✓ Fits season (64 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 12
Safe Start (90%) ✓ Fits season (64 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 12

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.

How to Plant Corn

1"
Planting Depth
12"
Between Plants
36"
Between Rows

How Much Corn to Grow

1-2 ears
Average yield per plant
15
Plants per person
45 sq ft
Space per person

For a family of 4, plant approximately 60 corn plants in about 180 sq ft. In Camrose's 147-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.5″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,312 gal / 100 sq ft

Monthly Watering Guide for Corn

Corn needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Corn Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 1.8" 0" ❄️ Dormant
May 6.5" 1.9" 4.6" 🚿 Regular watering
Jun 6.5" 2.1" 4.4" 🚿 Regular watering
Jul 6.5" 2" 4.5" 🚿 Regular watering
Aug 6.5" 1.7" 4.8" 🚿 Regular watering
Sep 6.5" 1.4" 5.1" 🚿 Regular watering
Oct 6.5" 1.5" 5" 🚿 Regular watering
Nov 1.3" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

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

Corn 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.

Corn needs ~320 GDD — county provides 588 GDD Excellent fit

Corn Planting Timeline — Camrose, AB

Corn Planting Calendar

Activity When Date Range
Direct Sow May 26 May 26 – Jun 16
Harvest July 28 Jul 28 – Sep 22

Plant 1" deep · 12" apart · Rows 36" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June Direct Sow
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4b

📆 Growing Season

147 days in Camrose

Growing Tips for Corn in Camrose

Common pests for Corn in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

Camrose receives only 17" of rain annually. Corn needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant in blocks of at least 4 rows rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Celery

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Corn in Camrose, AB?

Camrose is in Zone 4b with an average last frost of May 12. Plan your Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Camrose, AB?

Camrose, Alberta is in USDA Hardiness Zone 4b. The average last spring frost is May 12 and first fall frost is October 6.

🌱

Your Camrose Garden Planner — Free

A 24-page printable planner built for Camrose (Zone 4b). 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 Camrose, AB. 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.