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When to plant Portulaca in Macon County County,

Spring Portulaca in Macon County County goes in March 11–April 1, once nighttime temps stop dipping near freezing.

When to Plant Portulaca in Macon County, AL

Macon County, Alabama Zone 8b June

This month in Macon County, Alabama

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

Avg. last frost March 25
Avg. first frost November 6
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Start harvesting portulaca

    If you can't use it all right away, check the food-preservation section of your planner.

Before July arrives, get these ready
  • 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.

Macon County, Alabama is in USDA Zone 8b. The average last spring frost is March 25 and the first fall frost is November 6, giving you a growing season of approximately 226 days.

At an elevation of 450 feet, Macon County receives approximately 60 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Portulaca may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Portulaca, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Portulaca root diseases.

Annual Blooms in Summer Pollinator-friendly Deer-resistant
Macon County, AL (Zone 8b) Long season
226 days
Last Spring Frost March 25
226 growing days
First Fall Frost November 6
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Macon County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Portulaca Planting Risk Windows

Early Start (70% safe) ✓ Fits season (39 days to spare)
Start indoors: Feb 8 Transplant: Feb 22 🌸 Bloom: Apr 12 – Sep 20
Recommended (50%) ✓ Fits season (30 days to spare)
Start indoors: Feb 25 Transplant: Mar 11 🌸 Bloom: Apr 29 – Oct 7
Safe Start (90%) ✓ Fits season (29 days to spare)
Start indoors: Mar 20 Transplant: Apr 3 🌸 Bloom: May 22 – Oct 30

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 Macon County

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

Soil pH

Your soil pH (5.2–6.3) overlaps with Portulaca's range (5.5–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Macon County is excellent for Portulaca — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Portulaca prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Portulaca.

How to Plant Portulaca

8"
Between Plants
10"
Between Rows

Succession Planting Portulaca

5
successive plantings in your 226-day season

Sow every 5.7 weeks. Last sowing by Aug 28 to harvest before frost.

Portulaca Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/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 4.3" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 2.2" 5.8" 0" ✅ Rainfall sufficient
Apr 2.2" 5" 0" ✅ Rainfall sufficient
May 2.2" 5.4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 6.7" 0" ✅ Rainfall sufficient
Aug 2.2" 5.6" 0" ✅ Rainfall sufficient
Sep 2.2" 4.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 4.7" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Macon 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 ~1,320 GDD — county provides 4,972 GDD Excellent fit

Portulaca Planting Timeline — Macon County, AL

Portulaca Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors March 11 Mar 11 – Mar 25
Direct Sow March 11 Mar 11 – Apr 1
Bloom April 29 Apr 29 – Oct 7

· 8" apart · Rows 10" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Direct Sow 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: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

226 days in Macon County

Growing Tips for Portulaca in Macon County

Direct sow Portulaca outdoors after March 25 in Macon County when soil has warmed and frost danger has passed.

With Macon County's clay soil (31% clay), work in 3-4 inches of compost before planting Portulaca. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Macon 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 →

Frequently Asked Questions

When should I plant Portulaca in Macon County, AL?

Macon County is in Zone 8b with an average last frost of March 25. Plan your Portulaca planting based on this frost date — see the calendar above for exact timing.

What planting zone is Macon County, AL?

Macon County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 25 and first fall frost is November 6.

When should I plant Portulaca in Macon County County, ?

In Macon County County, , plant Portulaca after the last frost (around March 25) and before the first frost (around November 6). Best results when soil holds above 50°F.

What growing zone is Macon County County, for Portulaca?

Macon County County sits in USDA Zone 8b. Portulaca grows reliably in zones 3a through 11b, so it's a good fit here.

Can Portulaca grow in Macon County County's climate?

Yes — Portulaca grows well in Macon County County's temperate climate. Macon County County averages a 226-day frost-free season, with last frost around March 25 and first frost around November 6.

🌱

Your Macon County Garden Planner — Free

A 22-page printable planner built for Macon County (Zone 8b). 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 Macon County, AL. 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.