When to Plant Arugula in Wharton County, TX
Wharton County, Texas gardeners: here's your July plan
July is a pivotal month for Wharton County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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.
Wharton County, Texas is in USDA Zone 9a. The average last spring frost is February 17 and the first fall frost is December 6, giving you a growing season of approximately 292 days.
At an elevation of 207 feet, Wharton County receives approximately 64.8 inches of rainfall annually with predominantly loam soil. Summer highs average 98°F, so Arugula may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Arugula root diseases.
Wharton County Soil Profile
Soil Type
Loam
Soil pH
6.6-7.7
Drainage
Well Drained
Arugula 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 Wharton County
How your county's soil matches Arugula's growing requirements.
Soil pH
Your soil pH (6.6–7.7) is more alkaline than Arugula prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Wharton County is excellent for Arugula — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Arugula.
How to Plant Arugula
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Arugula
Sow every 3.4 weeks. Last sowing by Oct 17 to harvest before frost.
For a dedicated fall crop, sow by Oct 11.
Arugula Water Budget
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 | — | 1.7" | 0" | ❄️ Dormant |
| Feb | 2.6" | 2.2" | 0.4" | 💧 Light watering |
| Mar | 2.6" | 4.6" | 0" | ✅ Rainfall sufficient |
| Apr | 2.6" | 6.6" | 0" | ✅ Rainfall sufficient |
| May | 2.6" | 9" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 10.4" | 0" | ✅ Rainfall sufficient |
| Jul | 2.6" | 8.4" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 5.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 4.4" | 0" | ✅ Rainfall sufficient |
| Nov | 2.6" | 2.4" | 0.2" | 💧 Light watering |
| Dec | 2.6" | 1.9" | 0.7" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Wharton County). Supplement amounts are based on average rainfall — 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" — 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.
Arugula Planting Timeline — Wharton County, TX
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 20 | Jan 20 – Feb 3 |
| Transplant Outdoors | February 17 | Feb 17 – Mar 3 |
| Direct Sow | January 27 | Jan 27 – Feb 17 |
| Harvest | March 24 | Mar 24 – May 26 |
| Fall Sowing | October 11 | Oct 11 – Oct 25 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors Harvest |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.6"/week · Natural rainfall sufficient
📅 Days to Maturity
30–50 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9a
📆 Growing Season
292 days in Wharton County
Growing Tips for Arugula in Wharton County
Direct sow Arugula outdoors after February 17 in Wharton County when soil has warmed and frost danger has passed.
Summer highs in Wharton County reach 98°F — grow Arugula as a spring or fall crop. Use shade cloth if planting in summer.
Your generous 293.0-day season in Wharton 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
Check more plant combinations with our Companion Planting Checker →
Arugula in Other Locations
Frequently Asked Questions
When should I plant Arugula in Wharton County, TX?
Wharton County is in Zone 9a with an average last frost of February 17. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Wharton County, TX?
Wharton County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 17 and first fall frost is December 6.
Your Wharton County Garden Planner — Free
A 22-page printable planner built for Wharton County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.