When to Plant Purslane in San Jacinto County, TX
Purslane is a succulent edible plant rich in omega-3 fatty acids, often considered a weed but increasingly valued as a nutritious green. It has a lemony, peppery flavor.
San Jacinto County, Texas is in USDA Zone 8b. The average last spring frost is February 18 and the first fall frost is December 1, giving you a growing season of approximately 286 days.
At an elevation of 6 feet, San Jacinto County receives approximately 71.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Purslane during the growing season. Sandy soil warms quickly in spring — great for early planting — but Purslane will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Purslane root diseases.
San Jacinto County Soil Profile
Soil Type
Sandy Loam
Soil pH
5.3-6.7
Drainage
Well Drained
Plant 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 San Jacinto County
How your county's soil matches Purslane's growing requirements.
Soil pH
Your soil pH (5.3–6.7) overlaps with Purslane's range (5.5–7.5), though not a perfect match.
Soil Texture
Sandy soil in San Jacinto County warms quickly in spring but drains fast. Purslane will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Purslane.
How to Plant Purslane
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Purslane
Sow every 4.6 weeks. Last sowing by Oct 02 to harvest before frost.
For a dedicated fall crop, sow by Sep 22.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Purslane
Purslane 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 | Purslane Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.7" | 0" | ❄️ Dormant |
| Feb | 2.2" | 2.5" | 0" | ✅ Rainfall sufficient |
| Mar | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 8.5" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 9.5" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 11.4" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 9.2" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 8" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 6.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 5.2" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Dec | 2.2" | 1.9" | 0.3" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in San Jacinto County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Purslane 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.
Purslane Planting Timeline — San Jacinto County, TX
Purslane Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 14 | Jan 14 – Jan 28 |
| Transplant Outdoors | February 18 | Feb 18 – Mar 4 |
| Direct Sow | February 4 | Feb 4 – Feb 25 |
| Harvest | April 1 | Apr 1 – May 6 |
| Fall Sowing | September 22 | Sep 22 – Oct 6 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 5.5–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
286 days in San Jacinto County
Growing Tips for Purslane in San Jacinto County
Direct sow Purslane outdoors after February 18 in San Jacinto County when soil has warmed and frost danger has passed.
Sandy soil in San Jacinto County dries quickly — mulch Purslane with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Your generous 287.0-day season in San Jacinto County allows multiple plantings of Purslane. Sow every 20.0 days for continuous harvest.
General growing tips
Direct sow after last frost or allow to self-seed. Purslane thrives in hot, dry conditions. Harvest stem tips regularly. Contains more omega-3 fatty acids than any other leafy green.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Purslane in Other Locations
Frequently Asked Questions
When should I plant Purslane in San Jacinto County, TX?
San Jacinto County is in Zone 8b with an average last frost of February 18. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.
What planting zone is San Jacinto County, TX?
San Jacinto County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 18 and first fall frost is December 1.
Plan Your Garden with Confidence
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