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When to Plant Parsley in Pecos County, TX

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.

Pecos County, Texas is in USDA Zone 7b. The average last spring frost is March 13 and the first fall frost is November 15, giving you a growing season of approximately 247 days.

At an elevation of 1,445 feet, Pecos County receives approximately 42.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 103ยฐF, so Parsley may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Parsley will need more frequent watering and organic matter to retain nutrients.

Pecos County, TX (Zone 7b) Long season
247 days
Last Spring Frost March 13
247 growing days
First Fall Frost November 15

Pecos County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (133 days to spare)
Start indoors: Jan 28 Transplant: Feb 25 🍅 Harvest: Apr 29 – Jul 1
Recommended (50%) ✓ Fits season (128 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 8 – Jul 10
Safe Start (90%) ✓ Fits season (119 days to spare)
Start indoors: Mar 4 Transplant: Apr 1 🍅 Harvest: Jun 3 – Aug 5

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 Pecos County

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

Soil pH

Your soil pH (7.4โ€“8.6) is more alkaline than Parsley prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Parsley.

How to Plant Parsley

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Parsley

4
successive plantings in your 247-day season

Sow every 6.9 weeks. Last sowing by Aug 27 to harvest before frost.

For a dedicated fall crop, sow by Sep 06.

Plant Water Budget

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

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 2.6" 0" โ„๏ธ Dormant
Feb โ€” 2.3" 0" โ„๏ธ Dormant
Mar 2.6" 2.6" 0" โœ… Rainfall sufficient
Apr 2.6" 1.6" 1" ๐Ÿ’ง Light watering
May 2.6" 0.9" 1.7" ๐Ÿšฟ Regular watering
Jun 2.6" 1.6" 1" ๐Ÿ’ง Light watering
Jul 2.6" 7.8" 0" โœ… Rainfall sufficient
Aug 2.6" 8.8" 0" โœ… Rainfall sufficient
Sep 2.6" 5.6" 0" โœ… Rainfall sufficient
Oct 2.6" 3.6" 0" โœ… Rainfall sufficient
Nov 2.6" 2.3" 0.3" ๐Ÿ’ง Light watering
Dec โ€” 2.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Pecos County). Supplement amounts are based on average rainfall โ€” 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" 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.

Parsley needs ~1,908 GDD — county provides 6,730 GDD Excellent fit

Parsley Planting Timeline โ€” Pecos County, TX

Parsley Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 โ€“ Feb 20
Transplant Outdoors March 6 Mar 6 โ€“ Mar 20
Direct Sow February 27 Feb 27 โ€“ Mar 20
Harvest May 8 May 8 โ€“ Jul 10
Fall Sowing September 6 Sep 6 โ€“ Sep 20

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

Month-by-Month Timeline

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

60โ€“80 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

247 days in Pecos County

Growing Tips for Parsley in Pecos County

Direct sow Parsley outdoors after March 13 in Pecos County when soil has warmed and frost danger has passed.

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

With summer highs reaching 103ยฐF in Pecos 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 Pecos County, TX?

Pecos County is in Zone 7b with an average last frost of March 13. Plan your Parsley planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pecos County, TX?

Pecos County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 13 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Pecos County gardeners in Zone 7b 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 Pecos County, TX. Local conditions may vary. Last updated: April 2026.