Blog

When to plant Potatoes in Alcona County, MI

Plant Potatoes in Alcona County, between May 24 and June 14 — the only viable window. Zone 5b's short season (139 frost-free days) rules out a fall crop.

When to Plant Potatoes in Alcona County, MI

Potatoes

Potatoes are a versatile staple crop that produces tubers underground. They come in hundreds of varieties with varying colors, textures, and maturity dates.

Alcona County, Michigan is in USDA Zone 5b. The average last spring frost is May 17 and the first fall frost is October 3, giving you a growing season of approximately 139 days.

At an elevation of 1,061 feet, Alcona County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Potatoes during the growing season.

Alcona County, MI (Zone 5b) Short season
139 days
Last Spring Frost May 17
139 growing days
First Fall Frost October 3

Alcona County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

How Much Potatoes to Grow

3-5 lbs
Average yield per plant
5
Plants per person
10 sq ft
Space per person

For a family of 4, plant approximately 20 potatoes plants in about 40 sq ft. In Alcona County's 139-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Potatoes Planting Timeline — Alcona County, MI

Potatoes Planting Calendar

Activity When Date Range
Start Indoors March 22 Mar 22 – Apr 5
Transplant Outdoors May 31 May 31 – Jun 14
Direct Sow May 24 May 24 – Jun 14
Harvest August 9 Aug 9 – Oct 18

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 Transplant Outdoors Direct Sow
July
August Harvest
September Harvest
October Harvest
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

70–120 days

🧪 Soil pH

Needs 5–6.5 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

139 days in Alcona County

Growing Tips for Alcona County

Plant seed potatoes (not grocery store potatoes) 4 inches deep in spring. Hill soil around stems as plants grow to prevent greening. Stop watering when plants die back.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Cucumber
  • Squash Summer

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Potatoes in Alcona County, MI?

Alcona County is in Zone 5b with an average last frost of May 17. Plan your Potatoes planting based on this frost date — see the calendar above for exact timing.

What planting zone is Alcona County, MI?

Alcona County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 17 and first fall frost is October 3.

When should I plant Potatoes in Alcona County, MI?

In Alcona County, MI, plant Potatoes after the last frost (around May 17) and before the first frost (around October 3). Best results when soil holds above 50°F.

What growing zone is Alcona County, MI for Potatoes?

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

Can Potatoes grow in Alcona County's climate?

Yes — Potatoes grows well in Alcona County's temperate climate. Alcona County averages a 139-day frost-free season, with last frost around May 17 and first frost around October 3.

🌱

Your Alcona County Garden Planner — Free

A 22-page printable planner built for Alcona 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.

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 Alcona County, MI. 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.