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When to Plant Purslane in Lapeer County, MI

Lapeer County, Michigan Zone 6a May

Top priorities for Lapeer County, Michigan gardeners in May

Here's what deserves your attention in Lapeer County, Michigan this month. Everything below is tailored to Zone 6a and timed around your local frost dates.

Avg. last frost April 30
Avg. first frost October 19
Soil temp (4") 59°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
Before June arrives, get these ready
  • Starting indoors: purslane
  • First harvests: purslane

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Purslane is a succulent edible plant rich in omega-3 fatty acids, often considered a weed but increasingly valued as a nutritious green. It has a lemony, peppery flavor.

Lapeer County, Michigan is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 19, giving you a growing season of approximately 172 days.

At an elevation of 1,011 feet, Lapeer County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Purslane to ensure they mature before fall.

Lapeer County, MI (Zone 6a) Moderate season
172 days
Last Spring Frost April 30
172 growing days
First Fall Frost October 19
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Lapeer County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Mar 23 Transplant: Apr 27 🍅 Harvest: Jun 8 – Jul 13
Recommended (50%) ✓ Fits season (95 days to spare)
Start indoors: Mar 26 Transplant: Apr 30 🍅 Harvest: Jun 11 – Jul 16
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Apr 18 Transplant: May 23 🍅 Harvest: Jul 4 – Aug 8

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.

Soil Compatibility in Lapeer County

How your county's soil matches Purslane's growing requirements.

Soil pH

Your soil pH (5.8–7.2) is within Purslane's preferred range (5.5–7.5).

Soil Texture

The silt loam soil in Lapeer County is excellent for Purslane — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Purslane.

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Purslane.

How to Plant Purslane

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Purslane

5
successive plantings in your 172-day season

Sow every 4.6 weeks. Last sowing by Aug 20 to harvest before frost.

For a dedicated fall crop, sow by Aug 10.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Purslane

Purslane needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Purslane Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 2.2" 3.2" 0" ✅ Rainfall sufficient
May 2.2" 4.4" 0" ✅ Rainfall sufficient
Jun 2.2" 5.1" 0" ✅ Rainfall sufficient
Jul 2.2" 4.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3.4" 0" ✅ Rainfall sufficient
Sep 2.2" 3.7" 0" ✅ Rainfall sufficient
Oct 2.2" 2.7" 0" ✅ Rainfall sufficient
Nov 2.3" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

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

Purslane 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.

Purslane needs ~650 GDD — county provides 2,236 GDD Excellent fit

Purslane Planting Timeline — Lapeer County, MI

Purslane Planting Calendar

Activity When Date Range
Start Indoors March 26 Mar 26 – Apr 9
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 16 Apr 16 – May 7
Harvest June 11 Jun 11 – Jul 16
Fall Sowing August 10 Aug 10 – Aug 24

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

172 days in Lapeer County

Growing Tips for Purslane in Lapeer County

Direct sow Purslane outdoors after April 30 in Lapeer County when soil has warmed and frost danger has passed.

Your generous 172.0-day season in Lapeer County allows multiple plantings of Purslane. Sow every 20.0 days for continuous harvest.

General growing tips

Direct sow after last frost or allow to self-seed. Purslane thrives in hot, dry conditions. Harvest stem tips regularly. Contains more omega-3 fatty acids than any other leafy green.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Purslane in Lapeer County, MI?

Lapeer County is in Zone 6a with an average last frost of April 30. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lapeer County, MI?

Lapeer County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 19.

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Your Lapeer County Garden Planner — Free

A 24-page printable planner built for Lapeer County (Zone 6a). 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 Lapeer County, MI. 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.