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When to Plant Portulaca in Taylor County, TX

Taylor County, Texas Zone 8a July

July in Taylor County, Texas — your action list

July is a pivotal month for Taylor County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 20
Avg. first frost November 17
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. Basket week: portulaca

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

August will be here before you know it — start on
  • 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.

Taylor County, Texas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 17, giving you a growing season of approximately 242 days.

At an elevation of 2,238 feet, Taylor County receives approximately 51.1 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Portulaca during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Portulaca root diseases.

Annual Blooms in Summer Pollinator-friendly Deer-resistant
Taylor County, TX (Zone 8a) Long season
242 days
Last Spring Frost March 20
242 growing days
First Fall Frost November 17

Taylor County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.6

Drainage

Well Drained

Portulaca Planting Risk Windows

Early Start (70% safe) ✓ Fits season (55 days to spare)
Start indoors: Feb 12 Transplant: Mar 5 🌸 Bloom: Apr 23 – Sep 17
Recommended (50%) ✓ Fits season (53 days to spare)
Start indoors: Feb 20 Transplant: Mar 13 🌸 Bloom: May 1 – Sep 25
Safe Start (90%) ✓ Fits season (45 days to spare)
Start indoors: Mar 15 Transplant: Apr 5 🌸 Bloom: May 24 – Oct 18

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 Taylor County

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

Soil pH

Your soil pH (6.3–7.6) overlaps with Portulaca's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Portulaca.

How to Plant Portulaca

8"
Between Plants
10"
Between Rows

Succession Planting Portulaca

5
successive plantings in your 242-day season

Sow every 5.7 weeks. Last sowing by Sep 08 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 1.2" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.2" 3.3" 0" ✅ Rainfall sufficient
Apr 2.2" 5.3" 0" ✅ Rainfall sufficient
May 2.2" 7" 0" ✅ Rainfall sufficient
Jun 2.2" 8.7" 0" ✅ Rainfall sufficient
Jul 2.2" 6.6" 0" ✅ Rainfall sufficient
Aug 2.2" 5.4" 0" ✅ Rainfall sufficient
Sep 2.2" 5.5" 0" ✅ Rainfall sufficient
Oct 2.2" 3.3" 0" ✅ Rainfall sufficient
Nov 2.2" 2" 0.2" 💧 Light watering
Dec 1.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Taylor 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 ~1,140 GDD — county provides 4,598 GDD Excellent fit

Portulaca Planting Timeline — Taylor County, TX

Portulaca Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors March 13 Mar 13 – Mar 27
Direct Sow March 13 Mar 13 – Apr 3
Bloom May 1 May 1 – Sep 25

· 8" apart · Rows 10" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Direct Sow
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October
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 8a

📆 Growing Season

242 days in Taylor County

Growing Tips for Portulaca in Taylor County

Direct sow Portulaca outdoors after March 20 in Taylor County when soil has warmed and frost danger has passed.

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 Taylor County, TX?

Taylor County is in Zone 8a with an average last frost of March 20. Plan your Portulaca planting based on this frost date — see the calendar above for exact timing.

What planting zone is Taylor County, TX?

Taylor County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 17.

🌱

Your Taylor County Garden Planner — Free

A 22-page printable planner built for Taylor 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.

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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 Taylor County, TX. Local conditions may vary. Last updated: July 2026.

Sources & credits

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