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When to plant Cress in Iosco County, MI

Plant Cress in Iosco County from April 30 to May 21 in spring. Iosco County sits in USDA Zone 5b, with last frost around May 14 and first frost on October 3. A second sowing from July 25 to August 8 extends the harvest into fall.

When to Plant Cress in Iosco County, MI

Garden cress is one of the fastest-growing edibles, producing peppery sprouts in as little as two weeks. It is excellent for microgreens and garnishes.

Iosco County, Michigan is in USDA Zone 5b. The average last spring frost is May 14 and the first fall frost is October 3, giving you a growing season of approximately 142 days.

At an elevation of 696 feet, Iosco County receives approximately 37.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Cress during the growing season.

Iosco County, MI (Zone 5b) Short season
142 days
Last Spring Frost May 14
142 growing days
First Fall Frost October 3

Iosco County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Cress Planting Timeline — Iosco County, MI

Cress Planting Calendar

Activity When Date Range
Start Indoors April 9 Apr 9 – Apr 23
Transplant Outdoors May 14 May 14 – May 28
Direct Sow April 30 Apr 30 – May 21
Harvest May 28 May 28 – Jun 18
Fall Sowing July 25 Jul 25 – Aug 8

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

14–21 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

142 days in Iosco County

Growing Tips for Iosco County

Sow seeds thickly on moist soil or paper towels. Keep moist and harvest when 2-3 inches tall. Succession sow every few days for continuous supply. Grows well indoors year-round.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cress in Iosco County, MI?

Iosco County is in Zone 5b with an average last frost of May 14. Plan your Cress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Iosco County, MI?

Iosco County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 14 and first fall frost is October 3.

When should I plant Cress in Iosco County, MI?

In Iosco County, MI, plant Cress after the last frost (around May 14) and before the first frost (around October 3). Best results when soil holds above 50°F.

What growing zone is Iosco County, MI for Cress?

Iosco County sits in USDA Zone 5b. Cress grows reliably in zones 2a through 11b, so it's a good fit here.

Can Cress grow in Iosco County's climate?

Yes — Cress grows well in Iosco County's temperate climate. Iosco County averages a 142-day frost-free season, with last frost around May 14 and first frost around October 3.

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Your Iosco County Garden Planner — Free

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

Sources & credits

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