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When to Plant Parsley in Lee County, TX

Lee County, Texas Zone 9a May

May in Lee County, Texas — your action list

Your Lee County, Texas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost February 28
Avg. first frost November 30
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Start harvesting parsley

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June prep starts now
  • First harvests: parsley

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Parsley is a biennial herb available in flat-leaf (Italian) and curly varieties. It is a nutritional powerhouse rich in vitamins C and K and adds fresh flavor to countless dishes.

Lee County, Texas is in USDA Zone 9a. The average last spring frost is February 28 and the first fall frost is November 30, giving you a growing season of approximately 275 days.

At an elevation of 1,174 feet, Lee County receives approximately 59.1 inches of rainfall annually with predominantly clay soil. Summer highs average 97°F, so Parsley may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Parsley, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsley root diseases.

Lee County, TX (Zone 9a) Year-round
275 days
Last Spring Frost February 28
275 growing days
First Fall Frost November 30
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Lee County Soil Profile

Soil Type

Clay

Soil pH

7.1-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (156 days to spare)
Start indoors: Jan 17 Transplant: Feb 7 🍅 Harvest: Apr 11 – Jun 13
Recommended (50%) ✓ Fits season (156 days to spare)
Start indoors: Jan 31 Transplant: Feb 21 🍅 Harvest: Apr 25 – Jun 27
Safe Start (90%) ✓ Fits season (149 days to spare)
Start indoors: Feb 24 Transplant: Mar 17 🍅 Harvest: May 19 – Jul 21

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 Lee County

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

Soil pH

Your soil pH (7.1–8.2) is more alkaline than Parsley prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Your clay soil in Lee County is workable for Parsley. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Parsley.

How to Plant Parsley

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

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

Succession Planting Parsley

5
successive plantings in your 275-day season

Sow every 6.9 weeks. Last sowing by Sep 11 to harvest before frost.

For a dedicated fall crop, sow by Oct 05.

Plant Water Budget

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

Monthly Watering Guide for Parsley

Parsley 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 Parsley Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 2.6" 1.8" 0.8" 💧 Light watering
Mar 2.6" 4.3" 0" ✅ Rainfall sufficient
Apr 2.6" 5.8" 0" ✅ Rainfall sufficient
May 2.6" 8.6" 0" ✅ Rainfall sufficient
Jun 2.6" 9.5" 0" ✅ Rainfall sufficient
Jul 2.6" 8.1" 0" ✅ Rainfall sufficient
Aug 2.6" 7.3" 0" ✅ Rainfall sufficient
Sep 2.6" 5.2" 0" ✅ Rainfall sufficient
Oct 2.6" 3.4" 0" ✅ Rainfall sufficient
Nov 2.6" 1.8" 0.8" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Lee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Parsley 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.

Parsley needs ~1,592 GDD — county provides 6,279 GDD Excellent fit

Parsley Planting Timeline — Lee County, TX

Parsley Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors February 21 Feb 21 – Mar 7
Direct Sow February 7 Feb 7 – Feb 28
Harvest April 25 Apr 25 – Jun 27
Fall Sowing October 5 Oct 5 – Oct 19

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

275 days in Lee County

Growing Tips for Parsley in Lee County

Direct sow Parsley outdoors after February 28 in Lee County when soil has warmed and frost danger has passed.

With Lee County's clay soil (37% clay), work in 3-4 inches of compost before planting Parsley. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Lee County, provide afternoon shade for Parsley and water deeply in the morning.

Common pests for Parsley in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Soak seeds overnight as germination is slow. Harvest outer stems first to keep plants productive. Parsley attracts swallowtail butterflies.

Companion Planting

Good Companions

Avoid Planting Near

  • Mint
  • Lettuce

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Parsley in Lee County, TX?

Lee County is in Zone 9a with an average last frost of February 28. Plan your Parsley planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lee County, TX?

Lee County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 28 and first fall frost is November 30.

🌱

Your Lee County Garden Planner — Free

A 24-page printable planner built for Lee 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.

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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 Lee County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.