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When to plant Portulaca in Earleton, FL

Portulaca planted in Earleton between February 9 and March 2 matures in 50–70 days — well before the November 27 first frost.

When to Plant Portulaca in Earleton, FL

Alachua County, Florida Zone 9a July

Your July gardening checklist

A quick July briefing for Alachua County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 23
Avg. first frost November 27
Soil temp (4") 95°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Collect portulaca at their peak

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

A few tasks this July that'll pay off in August
  • First harvests: portulaca

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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.

Earleton, 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 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.

Annual Blooms in Summer Pollinator-friendly Deer-resistant
Earleton, FL (Zone 9a) Year-round
277 days
Last Spring Frost February 23
277 growing days
First Fall Frost November 27

Earleton Soil Profile

Soil Type

Sand

Soil pH

5.2-6.1

Drainage

Well Drained

Portulaca Planting Risk Windows

Early Start (70% safe) ✓ Fits season (54 days to spare)
Start indoors: Jan 17 Transplant: Jan 31 🌸 Bloom: Mar 21 – Sep 26
Recommended (50%) ✓ Fits season (53 days to spare)
Start indoors: Jan 26 Transplant: Feb 9 🌸 Bloom: Mar 30 – Oct 5
Safe Start (90%) ✓ Fits season (47 days to spare)
Start indoors: Feb 24 Transplant: Mar 10 🌸 Bloom: Apr 28 – Nov 3

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 Earleton

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

Soil pH

Your soil pH (5.2–6.1) overlaps with Portulaca's range (5.5–7.0), though not a perfect match.

Soil Texture

Sandy soil in Alachua 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 (1.6%). 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 277-day season

Sow every 5.7 weeks. Last sowing by Sep 18 to harvest before frost.

Portulaca 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 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 2.6" 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.

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 ~1,455 GDD — county provides 6,741 GDD Excellent fit

Portulaca Planting Timeline — Earleton, FL

Portulaca Planting Calendar

Activity When Date Range
Start Indoors January 26 Jan 26 – Feb 9
Transplant Outdoors February 9 Feb 9 – Feb 23
Direct Sow February 9 Feb 9 – Mar 2
Bloom March 30 Mar 30 – Oct 5

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

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: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

277 days in Alachua County

Growing Tips for Portulaca in Earleton

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

Sandy soil in Alachua County dries quickly — mulch Portulaca 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 Portulaca and water deeply in the morning.

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 →

When should I plant Portulaca in Earleton, FL?

In Earleton, FL, plant Portulaca after the last frost (around February 23) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Earleton, FL for Portulaca?

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

Can Portulaca grow in Earleton's climate?

Yes — Portulaca grows well in Earleton's temperate climate. Earleton averages a 278-day frost-free season, with last frost around February 23 and first frost around November 27.

🌱

Your Alachua County Garden Planner — Free

A 22-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: July 2026.