When to Plant Portulaca in Brooks County, TX
Your June gardening checklist
Each item below is timed to Brooks County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Pick portulaca
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
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.
Brooks County, Texas is in USDA Zone 9b. The average last spring frost is February 10 and the first fall frost is December 13, giving you a growing season of approximately 306 days.
At an elevation of 2,752 feet, Brooks County receives approximately 64.5 inches of rainfall annually with predominantly loam soil. Summer highs average 104°F, so Portulaca may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Portulaca root diseases.
Brooks County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.2
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 Brooks County
How your county's soil matches Portulaca's growing requirements.
Soil pH
Your soil pH (6.7–7.2) overlaps with Portulaca's range (5.5–7.0), though not a perfect match.
Soil Texture
The loam soil in Brooks County is excellent for Portulaca — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Portulaca.
Organic Matter
Organic matter is moderate (2.1%). Annual compost additions will help Portulaca.
How to Plant Portulaca
Succession Planting Portulaca
Sow every 5.7 weeks. Last sowing by Oct 04 to harvest before frost.
Portulaca Water Budget
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 | — | 1.9" | 0" | ❄️ Dormant |
| Feb | 2.2" | 2.5" | 0" | ✅ Rainfall sufficient |
| Mar | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 6.1" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 10.3" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 10.5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 7.3" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 7.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 6" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4.8" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Dec | 2.2" | 1.8" | 0.4" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Brooks 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 — Brooks County, TX
Portulaca Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 13 | Jan 13 – Jan 27 |
| Transplant Outdoors | January 20 | Jan 20 – Feb 3 |
| Direct Sow | January 20 | Jan 20 – Feb 10 |
| Bloom | March 10 | Mar 10 – Sep 29 |
· 8" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Transplant Outdoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | Bloom |
| April | Bloom |
| 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 9b
📆 Growing Season
306 days in Brooks County
Growing Tips for Portulaca in Brooks County
Direct sow Portulaca outdoors after February 10 in Brooks County when soil has warmed and frost danger has passed.
With summer highs reaching 104°F in Brooks 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 →
Portulaca in Other Locations
Frequently Asked Questions
When should I plant Portulaca in Brooks County, TX?
Brooks County is in Zone 9b with an average last frost of February 10. Plan your Portulaca planting based on this frost date — see the calendar above for exact timing.
What planting zone is Brooks County, TX?
Brooks County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 10 and first fall frost is December 13.
Your Brooks County Garden Planner — Free
A 22-page printable planner built for Brooks County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.