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When to Plant Purslane in Indian River County, FL

Indian River County, Florida Zone 10a May

May in Indian River County, Florida — your action list

May is a pivotal month for Indian River County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost January 26
Avg. first frost December 20
Soil temp (4") 78°F
Watering Moderate
Pest pressure High
Daylight 13.4 hrs

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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.

Indian River County, Florida is in USDA Zone 10a. The average last spring frost is January 26 and the first fall frost is December 20, giving you a growing season of approximately 328 days.

At an elevation of 317 feet, Indian River County receives approximately 52.7 inches of rainfall annually with predominantly sand soil. Summer highs average 97°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.

Indian River County, FL (Zone 10a) Year-round
328 days
Last Spring Frost January 26
328 growing days
First Fall Frost December 20
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Indian River County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (249 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Mar 2 – Apr 6
Recommended (50%) ✓ Fits season (251 days to spare)
Start indoors: Dec 29 Transplant: Jan 26 🍅 Harvest: Mar 9 – Apr 13
Safe Start (90%) ✓ Fits season (232 days to spare)
Start indoors: Jan 21 Transplant: Feb 18 🍅 Harvest: Apr 1 – May 6

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 Indian River County

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

Soil pH

Your soil pH (5.2–6.2) overlaps with Purslane's range (5.5–7.5), though not a perfect match.

Soil Texture

Sandy soil in Indian River County 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 (1.5%). 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

10
successive plantings in your 328-day season

Sow every 4.6 weeks. Last sowing by Oct 21 to harvest before frost.

For a dedicated fall crop, sow by Oct 25.

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
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 2.2" 2.5" 0" ✅ Rainfall sufficient
Feb 2.2" 2.5" 0" ✅ Rainfall sufficient
Mar 2.2" 2.8" 0" ✅ Rainfall sufficient
Apr 2.2" 2.5" 0" ✅ Rainfall sufficient
May 2.2" 3.3" 0" ✅ Rainfall sufficient
Jun 2.2" 7.8" 0" ✅ Rainfall sufficient
Jul 2.2" 7.2" 0" ✅ Rainfall sufficient
Aug 2.2" 8.2" 0" ✅ Rainfall sufficient
Sep 2.2" 7.2" 0" ✅ Rainfall sufficient
Oct 2.2" 4.4" 0" ✅ Rainfall sufficient
Nov 2.2" 2.3" 0" ✅ Rainfall sufficient
Dec 2.2" 1.9" 0.3" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Indian River 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 ~1,138 GDD — county provides 7,484 GDD Excellent fit

Purslane Planting Timeline — Indian River County, FL

Purslane Planting Calendar

Activity When Date Range
Start Indoors December 29 Dec 29 – Jan 12
Transplant Outdoors January 26 Jan 26 – Feb 9
Direct Sow January 5 Jan 5 – Jan 26
Harvest March 9 Mar 9 – Apr 13
Fall Sowing October 25 Oct 25 – Nov 8

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 10a

📆 Growing Season

328 days in Indian River County

Growing Tips for Purslane in Indian River County

Direct sow Purslane outdoors after January 26 in Indian River County when soil has warmed and frost danger has passed.

Sandy soil in Indian River 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 97°F in Indian River County, provide afternoon shade for Purslane and water deeply in the morning.

Your generous 329.0-day season in Indian River 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 Indian River County, FL?

Indian River County is in Zone 10a with an average last frost of January 26. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.

What planting zone is Indian River County, FL?

Indian River County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 26 and first fall frost is December 20.

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Your Indian River County Garden Planner — Free

A 24-page printable planner built for Indian River County (Zone 10a). 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 Indian River 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.