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When to Plant Purslane in Alachua County, FL

Alachua County, Florida Zone 9a May

What to do in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 23
Avg. first frost November 27
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 13.5 hrs
  1. Pick purslane

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Alachua County, Florida is in USDA Zone 9a. The average last spring frost is February 23 and the first fall frost is November 27, giving you a growing season of approximately 277 days.

At an elevation of 398 feet, Alachua County receives approximately 50 inches of rainfall annually with predominantly sand soil. Summer highs average 99°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.

Alachua County, FL (Zone 9a) Year-round
277 days
Last Spring Frost February 23
277 growing days
First Fall Frost November 27

Alachua County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (201 days to spare)
Start indoors: Jan 17 Transplant: Feb 14 🍅 Harvest: Mar 28 – May 2
Recommended (50%) ✓ Fits season (200 days to spare)
Start indoors: Jan 26 Transplant: Feb 23 🍅 Harvest: Apr 6 – May 11
Safe Start (90%) ✓ Fits season (194 days to spare)
Start indoors: Feb 24 Transplant: Mar 24 🍅 Harvest: May 5 – Jun 9

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 Alachua County

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

Soil pH

Your soil pH (5.2–6.1) overlaps with Purslane's range (5.5–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Purslane.

Organic Matter

Organic matter is low (1.6%). 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

8
successive plantings in your 277-day season

Sow every 4.6 weeks. Last sowing by Sep 28 to harvest before frost.

For a dedicated fall crop, sow by Oct 02.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 2.6" 0" ❄️ Dormant
Feb 2.2" 2.7" 0" ✅ Rainfall sufficient
Mar 2.2" 2.7" 0" ✅ Rainfall sufficient
Apr 2.2" 2.5" 0" ✅ Rainfall sufficient
May 2.2" 3.2" 0" ✅ Rainfall sufficient
Jun 2.2" 7.5" 0" ✅ Rainfall sufficient
Jul 2.2" 7.4" 0" ✅ Rainfall sufficient
Aug 2.2" 6.3" 0" ✅ Rainfall sufficient
Sep 2.2" 6.8" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 1.9" 0.3" 💧 Light watering
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Alachua 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 ~1,212 GDD — county provides 6,741 GDD Excellent fit

Purslane Planting Timeline — Alachua County, FL

Purslane Planting Calendar

Activity When Date Range
Start Indoors January 26 Jan 26 – Feb 9
Transplant Outdoors February 23 Feb 23 – Mar 9
Direct Sow February 2 Feb 2 – Feb 23
Harvest April 6 Apr 6 – May 11
Fall Sowing October 2 Oct 2 – Oct 16

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors
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

277 days in Alachua County

Growing Tips for Purslane in Alachua County

Direct sow Purslane outdoors after February 23 in Alachua County when soil has warmed and frost danger has passed.

Sandy soil in Alachua County 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 99°F in Alachua County, provide afternoon shade for Purslane and water deeply in the morning.

Your generous 278.0-day season in Alachua 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 Alachua County, FL?

Alachua County is in Zone 9a with an average last frost of February 23. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.

What planting zone is Alachua County, FL?

Alachua County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 23 and first fall frost is November 27.

🌱

Your Alachua County Garden Planner — Free

A 24-page printable planner built for Alachua County (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 Alachua County, FL. 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.