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When to plant Portulaca in Leon County County,

Aim to plant Portulaca in Leon County County on or after February 25; the window stays open through March 18. Leon County County's 255-day frost-free season gives you plenty of room for a spring and fall cycle.

When to Plant Portulaca in Leon County, FL

Leon County, Florida Zone 9a June

Your June gardening checklist

Each item below is timed to Leon County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 11
Avg. first frost November 21
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Basket week: portulaca

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

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Portulaca (Portulaca grandiflora), commonly called moss rose, is a succulent- stemmed annual built for hot, dry, low-fertility conditions where other flowers fail. Its silky, rose-like blooms open in full sun and close at night or on cloudy days. Excellent for slopes, rock gardens, containers, and parking-strip plantings where irrigation is limited. One of the easiest annuals for neglect- proof summer color.

Leon County, Florida is in USDA Zone 9a. The average last spring frost is March 11 and the first fall frost is November 21, giving you a growing season of approximately 255 days.

At an elevation of 250 feet, Leon County receives approximately 53.9 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Portulaca may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Portulaca will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Portulaca root diseases.

Annual Blooms in Summer Pollinator-friendly Deer-resistant
Leon County, FL (Zone 9a) Long season
255 days
Last Spring Frost March 11
255 growing days
First Fall Frost November 21
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Leon County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

Drainage

Well Drained

Portulaca Planting Risk Windows

Early Start (70% safe) ✓ Fits season (29 days to spare)
Start indoors: Feb 3 Transplant: Feb 17 🌸 Bloom: Apr 7 – Oct 13
Recommended (50%) ✓ Fits season (31 days to spare)
Start indoors: Feb 11 Transplant: Feb 25 🌸 Bloom: Apr 15 – Oct 21
Safe Start (90%) ✓ Fits season (28 days to spare)
Start indoors: Mar 7 Transplant: Mar 21 🌸 Bloom: May 9 – Nov 14

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 Leon County

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

Soil pH

Your soil pH (4.8–5.7) is more acidic than Portulaca prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Portulaca.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Portulaca.

How to Plant Portulaca

8"
Between Plants
10"
Between Rows

Succession Planting Portulaca

6
successive plantings in your 255-day season

Sow every 5.7 weeks. Last sowing by Sep 12 to harvest before frost.

Portulaca 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 Portulaca

Portulaca 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 Portulaca Needs Rainfall You Supplement Action
Jan 2.2" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 2.2" 3" 0" ✅ Rainfall sufficient
Apr 2.2" 2.4" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 7.2" 0" ✅ Rainfall sufficient
Jul 2.2" 7.6" 0" ✅ Rainfall sufficient
Aug 2.2" 7.5" 0" ✅ Rainfall sufficient
Sep 2.2" 6.9" 0" ✅ Rainfall sufficient
Oct 2.2" 5.2" 0" ✅ Rainfall sufficient
Nov 2.2" 2.1" 0.1" 💧 Light watering
Dec 2.6" 0" ❄️ Dormant

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

Portulaca 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.

Portulaca needs ~1,275 GDD — county provides 5,418 GDD Excellent fit

Portulaca Planting Timeline — Leon County, FL

Portulaca Planting Calendar

Activity When Date Range
Start Indoors February 11 Feb 11 – Feb 25
Transplant Outdoors February 25 Feb 25 – Mar 11
Direct Sow February 25 Feb 25 – Mar 18
Bloom April 15 Apr 15 – Oct 21

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

255 days in Leon County

Growing Tips for Portulaca in Leon County

Direct sow Portulaca outdoors after March 11 in Leon County when soil has warmed and frost danger has passed.

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

General growing tips

Direct-sow after last frost once soil warms to 65°F, or start indoors 4–6 weeks before last frost. Seed is tiny — surface sow and do not cover. Thin to proper spacing after germination. Thrives in poor, well-drained soil; rich or wet soil produces lush foliage but fewer blooms. No deadheading required — plants are self-cleaning. Double-flowered varieties hold blooms open longer in overcast conditions.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Portulaca in Leon County, FL?

Leon County is in Zone 9a with an average last frost of March 11. Plan your Portulaca planting based on this frost date — see the calendar above for exact timing.

What planting zone is Leon County, FL?

Leon County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 11 and first fall frost is November 21.

When should I plant Portulaca in Leon County, ?

In Leon County, , plant Portulaca after the last frost (around March 11) and before the first frost (around November 21). Best results when soil holds above 50°F.

What growing zone is Leon County, for Portulaca?

Leon County sits in USDA Zone 9a. Portulaca grows reliably in zones 3a through 11b, so it's a good fit here.

Can Portulaca grow in Leon County's climate?

Yes — Portulaca grows well in Leon County's temperate climate. Leon County averages a 255-day frost-free season, with last frost around March 11 and first frost around November 21.

🌱

Your Leon County Garden Planner — Free

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.