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When to Plant Arugula in Fort Bend 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.

Fort Bend County, Texas is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 8, giving you a growing season of approximately 297 days.

At an elevation of 90 feet, Fort Bend County receives approximately 70.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95ยฐF, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Arugula root diseases.

Fort Bend County, TX (Zone 9a) Year-round
297 days
Last Spring Frost February 14
297 growing days
First Fall Frost December 8

Fort Bend County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (208 days to spare)
Start indoors: Jan 1 Transplant: Jan 29 🍅 Harvest: Mar 5 – May 7
Recommended (50%) ✓ Fits season (199 days to spare)
Start indoors: Jan 17 Transplant: Feb 14 🍅 Harvest: Mar 21 – May 23
Safe Start (90%) ✓ Fits season (190 days to spare)
Start indoors: Feb 9 Transplant: Mar 9 🍅 Harvest: Apr 13 – Jun 15

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 Fort Bend County

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

Soil pH

Your soil pH (5.3โ€“6.4) is more acidic than Arugula prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Fort Bend County warms quickly in spring but drains fast. Arugula will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Arugula.

How to Plant Arugula

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Arugula

12
successive plantings in your 297-day season

Sow every 3.4 weeks. Last sowing by Oct 19 to harvest before frost.

For a dedicated fall crop, sow by Oct 13.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Arugula

Arugula needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Arugula Needs Rainfall You Supplement Action
Jan โ€” 1.6" 0" โ„๏ธ Dormant
Feb 2.6" 2.5" 0.1" ๐Ÿ’ง Light watering
Mar 2.6" 4.9" 0" โœ… Rainfall sufficient
Apr 2.6" 6.6" 0" โœ… Rainfall sufficient
May 2.6" 10.8" 0" โœ… Rainfall sufficient
Jun 2.6" 12.6" 0" โœ… Rainfall sufficient
Jul 2.6" 9" 0" โœ… Rainfall sufficient
Aug 2.6" 7.4" 0" โœ… Rainfall sufficient
Sep 2.6" 7" 0" โœ… Rainfall sufficient
Oct 2.6" 4.8" 0" โœ… Rainfall sufficient
Nov 2.6" 2.1" 0.5" ๐Ÿ’ง Light watering
Dec 2.6" 1.5" 1.1" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Fort Bend County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Arugula 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" โ€” every day above 50ยฐF 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.

Arugula needs ~850 GDD — county provides 6,332 GDD Excellent fit

Arugula Planting Timeline โ€” Fort Bend County, TX

Arugula Planting Calendar

Activity When Date Range
Start Indoors January 17 Jan 17 โ€“ Jan 31
Transplant Outdoors February 14 Feb 14 โ€“ Feb 28
Direct Sow January 24 Jan 24 โ€“ Feb 14
Harvest March 21 Mar 21 โ€“ May 23
Fall Sowing October 13 Oct 13 โ€“ Oct 27

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.6"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

30โ€“50 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

297 days in Fort Bend County

Growing Tips for Arugula in Fort Bend County

Direct sow Arugula outdoors after February 14 in Fort Bend County when soil has warmed and frost danger has passed.

Sandy soil in Fort Bend County dries quickly โ€” mulch Arugula with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Fort Bend County reach 95ยฐF โ€” grow Arugula as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 298.0-day season in Fort Bend County allows multiple plantings of Arugula. Sow every 15.0 days for continuous harvest.

Common pests for Arugula in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Arugula in Fort Bend County, TX?

Fort Bend County is in Zone 9a with an average last frost of February 14. Plan your Arugula planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fort Bend County, TX?

Fort Bend County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 14 and first fall frost is December 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fort Bend County gardeners in Zone 9a 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 Fort Bend County, TX. Local conditions may vary. Last updated: April 2026.