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When to Plant Arugula in El Paso County, TX

Arugula is a fast-growing cool-season green with a peppery, nutty flavor. It is excellent in salads and can be harvested as baby greens or mature leaves.

El Paso County, Texas is in USDA Zone 8a. The average last spring frost is March 16 and the first fall frost is November 11, giving you a growing season of approximately 240 days.

At an elevation of 3,971 feet, El Paso County receives approximately 35.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 107ยฐF, so Arugula may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Arugula will need more frequent watering and organic matter to retain nutrients.

El Paso County, TX (Zone 8a) Long season
240 days
Last Spring Frost March 16
240 growing days
First Fall Frost November 11

El Paso County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (146 days to spare)
Start indoors: Jan 25 Transplant: Mar 1 🍅 Harvest: Apr 5 – Jun 7
Recommended (50%) ✓ Fits season (142 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🍅 Harvest: Apr 20 – Jun 22
Safe Start (90%) ✓ Fits season (133 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: May 15 – Jul 17

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
1.0″/week
Rainfall provides
0.6″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,735 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Arugula needs ~1,210 GDD — county provides 7,260 GDD Excellent fit

Arugula Planting Timeline โ€” El Paso County, TX

Arugula Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 โ€“ Feb 23
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Direct Sow March 2 Mar 2 โ€“ Mar 23
Fall Sowing September 2 Sep 2 โ€“ Sep 16
Harvest April 20 Apr 20 โ€“ Jun 22

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

30โ€“50 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

240 days

Growing Tips for El Paso County

Sow seeds directly every 2-3 weeks for continuous harvest. Provide afternoon shade in warm weather to prevent bolting. Harvest outer leaves first to extend production.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Arugula in El Paso County, TX?

El Paso County is in Zone 8a with an average last frost of March 16. Plan your Arugula planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is El Paso County, TX?

El Paso County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 16 and first fall frost is November 11.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help El Paso County gardeners in Zone 8a 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 El Paso County, TX. Local conditions may vary. Last updated: April 2026.