When to plant Portulaca in DeKalb County County,
In DeKalb County County, plant Portulaca in spring between March 25 and April 15, once soil temps hold above 50°F. DeKalb County County's last frost averages April 1, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between and — roughly 70 days before the first frost on October 31.
When to Plant Portulaca in DeKalb County, AL
June in DeKalb County, Alabama — your action list
Each item below is timed to DeKalb County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Bring in the portulaca
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
July prep starts now
- First harvests: portulaca
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.
DeKalb County, Alabama is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is October 31, giving you a growing season of approximately 213 days.
At an elevation of 393 feet, DeKalb County receives approximately 56.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Portulaca during the growing season. 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.
DeKalb County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.8
Drainage
Well Drained
Portulaca Planting Risk Windows
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 DeKalb County
How your county's soil matches Portulaca's growing requirements.
Soil pH
Your soil pH (5.5–6.8) is within Portulaca's preferred range (5.5–7.0).
Soil Texture
The clay loam soil in DeKalb County is excellent for Portulaca — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Portulaca.
How to Plant Portulaca
Succession Planting Portulaca
Sow every 5.7 weeks. Last sowing by Aug 22 to harvest before frost.
Portulaca Water Budget
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 | — | 4.7" | 0" | ❄️ Dormant |
| Feb | — | 4.1" | 0" | ❄️ Dormant |
| Mar | — | 5.9" | 0" | ❄️ Dormant |
| Apr | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5.8" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.8" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| Nov | — | 4.6" | 0" | ❄️ Dormant |
| Dec | — | 5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in DeKalb 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 Planting Timeline — DeKalb County, AL
Portulaca Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 4 | Mar 4 – Mar 18 |
| Transplant Outdoors | March 25 | Mar 25 – Apr 8 |
| Direct Sow | March 25 | Mar 25 – Apr 15 |
| Bloom | May 13 | May 13 – Oct 7 |
· 8" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| 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: ideal
🗺️ USDA Zone
Zone 8a
📆 Growing Season
213 days in DeKalb County
Growing Tips for Portulaca in DeKalb County
Direct sow Portulaca outdoors after April 01 in DeKalb County when soil has warmed and frost danger has passed.
With DeKalb County's clay soil (28% clay), work in 3-4 inches of compost before planting Portulaca. Avoid tilling when soil is wet to prevent compaction.
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 →
Portulaca in Other Locations
Frequently Asked Questions
When should I plant Portulaca in DeKalb County, AL?
DeKalb County is in Zone 8a with an average last frost of April 1. Plan your Portulaca planting based on this frost date — see the calendar above for exact timing.
What planting zone is DeKalb County, AL?
DeKalb County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is April 1 and first fall frost is October 31.
When should I plant Portulaca in DeKalb County County, ?
In DeKalb County County, , plant Portulaca after the last frost (around April 1) and before the first frost (around October 31). Best results when soil holds above 50°F.
What growing zone is DeKalb County County, for Portulaca?
DeKalb County County sits in USDA Zone 8a. Portulaca grows reliably in zones 3a through 11b, so it's a good fit here.
Can Portulaca grow in DeKalb County County's climate?
Yes — Portulaca grows well in DeKalb County County's temperate climate. DeKalb County County averages a 213-day frost-free season, with last frost around April 1 and first frost around October 31.
Your DeKalb County Garden Planner — Free
A 22-page printable planner built for DeKalb County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.