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When to plant Celery in Aitkin County, MN

For Aitkin County, gardeners: plant Celery May 2 through May 23 once soil reads 50°F. A second sowing from July 11 to July 25 extends the harvest into fall.

When to Plant Celery in Aitkin County, MN

Celery

Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Aitkin County, Minnesota is in USDA Zone 4a. The average last spring frost is May 9 and the first fall frost is October 3, giving you a growing season of approximately 147 days.

At an elevation of 1,188 feet, Aitkin County receives approximately 35 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Celery to ensure they mature before fall.

Aitkin County, MN (Zone 4a) Short season
147 days
Last Spring Frost May 9
147 growing days
First Fall Frost October 3

Aitkin County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Celery Planting Timeline — Aitkin County, MN

Celery Planting Calendar

Activity When Date Range
Start Indoors March 28 Mar 28 – Apr 11
Transplant Outdoors May 9 May 9 – May 23
Direct Sow May 2 May 2 – May 23
Harvest August 1 Aug 1 – Sep 26
Fall Sowing July 11 Jul 11 – Jul 25

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors
May Transplant Outdoors Direct Sow
June
July Fall Sowing
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4a

📆 Growing Season

147 days in Aitkin County

Growing Tips for Aitkin County

Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celery in Aitkin County, MN?

Aitkin County is in Zone 4a with an average last frost of May 9. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is Aitkin County, MN?

Aitkin County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 9 and first fall frost is October 3.

When should I plant Celery in Aitkin County, MN?

In Aitkin County, MN, plant Celery after the last frost (around May 9) and before the first frost (around October 3). Best results when soil holds above 50°F.

What growing zone is Aitkin County, MN for Celery?

Aitkin County sits in USDA Zone 4a. Celery grows reliably in zones 2a through 10b, so it's a good fit here.

Can Celery grow in Aitkin County's climate?

Yes — Celery grows well in Aitkin County's temperate climate. Aitkin County averages a 147-day frost-free season, with last frost around May 9 and first frost around October 3.

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Your Aitkin County Garden Planner — Free

A 22-page printable planner built for Aitkin County (Zone 4a). 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 Aitkin County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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