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When to Plant Purslane in Washington 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.

Washington County, Texas is in USDA Zone 8b. The average last spring frost is March 2 and the first fall frost is November 27, giving you a growing season of approximately 270 days.

At an elevation of 386 feet, Washington County receives approximately 58.9 inches of rainfall annually with predominantly clay soil. Summer highs average 90ยฐF, providing good warmth for Purslane during the growing season. Clay soil retains moisture well for Purslane, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Purslane root diseases.

Washington County, TX (Zone 8b) Year-round
270 days
Last Spring Frost March 2
270 growing days
First Fall Frost November 27

Washington County Soil Profile

Soil Type

Clay

Soil pH

6.9-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (196 days to spare)
Start indoors: Jan 11 Transplant: Feb 15 🍅 Harvest: Mar 29 – May 3
Recommended (50%) ✓ Fits season (193 days to spare)
Start indoors: Jan 26 Transplant: Mar 2 🍅 Harvest: Apr 13 – May 18
Safe Start (90%) ✓ Fits season (194 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: May 3 – Jun 7

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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Purslane needs ~875 GDD — county provides 4,725 GDD Excellent fit

Purslane Planting Timeline โ€” Washington County, TX

Purslane Planting Calendar

Activity When Date Range
Start Indoors January 26 Jan 26 โ€“ Feb 9
Transplant Outdoors March 2 Mar 2 โ€“ Mar 16
Direct Sow February 16 Feb 16 โ€“ Mar 9
Fall Sowing September 18 Sep 18 โ€“ Oct 2
Harvest April 13 Apr 13 โ€“ May 18

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June โ€”
July โ€”
August โ€”
September Fall Sowing
October Fall Sowing
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

40โ€“60 days

Soil pH

5.5 โ€“ 7.5

USDA Zone

Zone 8b

Growing Season

270 days

Growing Tips for Washington County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Purslane in Washington County, TX?

Washington County is in Zone 8b with an average last frost of March 2. Plan your Purslane planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Washington County, TX?

Washington County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 2 and first fall frost is November 27.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Washington County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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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 Washington County, TX. Local conditions may vary. Last updated: April 2026.