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When to Plant Purslane in Allen Parish, LA

Allen Parish, Louisiana Zone 9a May

Allen Parish, Louisiana gardeners: here's your May plan

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Allen Parish, Louisiana.

Avg. last frost February 13
Avg. first frost December 7
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Pick purslane

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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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.

Allen Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 7, giving you a growing season of approximately 297 days.

At an elevation of 367 feet, Allen Parish receives approximately 51.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Purslane may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Purslane will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Purslane root diseases.

Allen Parish, LA (Zone 9a) Year-round
297 days
Last Spring Frost February 13
297 growing days
First Fall Frost December 7

Allen Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (228 days to spare)
Start indoors: Jan 2 Transplant: Jan 30 🍅 Harvest: Mar 13 – Apr 17
Recommended (50%) ✓ Fits season (220 days to spare)
Start indoors: Jan 16 Transplant: Feb 13 🍅 Harvest: Mar 27 – May 1
Safe Start (90%) ✓ Fits season (215 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: Apr 17 – May 22

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 Allen Parish

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

Soil pH

Your soil pH (4.9–6.3) overlaps with Purslane's range (5.5–7.5), though not a perfect match.

Soil Texture

Sandy soil in Allen Parish warms quickly in spring but drains fast. Purslane will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Purslane.

How to Plant Purslane

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Purslane

9
successive plantings in your 297-day season

Sow every 4.6 weeks. Last sowing by Oct 08 to harvest before frost.

For a dedicated fall crop, sow by Oct 12.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/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 4.2" 0" ❄️ Dormant
Feb 2.2" 4.7" 0" ✅ Rainfall sufficient
Mar 2.2" 4.9" 0" ✅ Rainfall sufficient
Apr 2.2" 3.4" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 5.8" 0" ✅ Rainfall sufficient
Aug 2.2" 4.4" 0" ✅ Rainfall sufficient
Sep 2.2" 3.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.3" 0" ✅ Rainfall sufficient
Nov 2.2" 4.4" 0" ✅ Rainfall sufficient
Dec 2.2" 4.1" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Allen Parish). 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 ~1,100 GDD — county provides 6,556 GDD Excellent fit

Purslane Planting Timeline — Allen Parish, LA

Purslane Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 23 Jan 23 – Feb 13
Harvest March 27 Mar 27 – May 1
Fall Sowing October 12 Oct 12 – Oct 26

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

Month-by-Month Timeline

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

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: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

297 days in Allen Parish

Growing Tips for Purslane in Allen Parish

Direct sow Purslane outdoors after February 13 in Allen Parish when soil has warmed and frost danger has passed.

Sandy soil in Allen Parish dries quickly — mulch Purslane with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Allen Parish, provide afternoon shade for Purslane and water deeply in the morning.

Your generous 298.0-day season in Allen Parish 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 Allen Parish, LA?

Allen Parish is in Zone 9a with an average last frost of February 13. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.

What planting zone is Allen Parish, LA?

Allen Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 7.

🌱

Your Allen Parish Garden Planner — Free

A 24-page printable planner built for Allen Parish (Zone 9a). 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 Allen Parish, LA. 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.