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When to Plant Parsley in Jeff Davis County, TX

Jeff Davis County, Texas Zone 8a May

Top priorities for Jeff Davis County, Texas gardeners in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 3
Avg. first frost November 1
Soil temp (4") 58°F
Watering High
Pest pressure Moderate
Daylight 13.6 hrs
  1. Time to start parsley inside

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

  2. Start harvesting parsley

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

June will be here before you know it — start on
  • 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.

Jeff Davis County, Texas is in USDA Zone 8a. The average last spring frost is April 3 and the first fall frost is November 1, giving you a growing season of approximately 212 days.

At an elevation of 4,298 feet, Jeff Davis County receives approximately 52.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Parsley may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Parsley will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsley root diseases.

Jeff Davis County, TX (Zone 8a) Long season
212 days
Last Spring Frost April 3
212 growing days
First Fall Frost November 1
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Jeff Davis County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Feb 13 Transplant: Mar 13 🍅 Harvest: May 15 – Jul 17
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Feb 27 Transplant: Mar 27 🍅 Harvest: May 29 – Jul 31
Safe Start (90%) ✓ Fits season (92 days to spare)
Start indoors: Mar 18 Transplant: Apr 15 🍅 Harvest: Jun 17 – Aug 19

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 Jeff Davis County

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

Soil pH

Your soil pH (7.2–8.7) is more alkaline than Parsley prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Parsley.

Organic Matter

Organic matter is low (1.1%). 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 212-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

For a dedicated fall crop, sow by Aug 23.

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
Drought risk

Water stress score is 6/10 — 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 3.3" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 3.4" 0" ❄️ Dormant
Apr 2.6" 1.7" 0.9" 💧 Light watering
May 2.6" 1.3" 1.3" 🚿 Regular watering
Jun 2.6" 1.8" 0.8" 💧 Light watering
Jul 2.6" 8.1" 0" ✅ Rainfall sufficient
Aug 2.6" 11.6" 0" ✅ Rainfall sufficient
Sep 2.6" 6.6" 0" ✅ Rainfall sufficient
Oct 2.6" 5" 0" ✅ Rainfall sufficient
Nov 2.6" 3.1" 0" ✅ Rainfall sufficient
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Jeff Davis 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 ~1,540 GDD — county provides 4,664 GDD Excellent fit

Parsley Planting Timeline — Jeff Davis County, TX

Parsley Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors March 27 Mar 27 – Apr 10
Direct Sow March 20 Mar 20 – Apr 10
Harvest May 29 May 29 – Jul 31
Fall Sowing August 23 Aug 23 – Sep 6

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August Fall Sowing
September Fall Sowing
October
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 8a

📆 Growing Season

212 days in Jeff Davis County

Growing Tips for Parsley in Jeff Davis County

Direct sow Parsley outdoors after April 03 in Jeff Davis County when soil has warmed and frost danger has passed.

Sandy soil in Jeff Davis County dries quickly — 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 96°F in Jeff Davis 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 Jeff Davis County, TX?

Jeff Davis County is in Zone 8a with an average last frost of April 3. Plan your Parsley planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jeff Davis County, TX?

Jeff Davis County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is April 3 and first fall frost is November 1.

🌱

Your Jeff Davis County Garden Planner — Free

A 24-page printable planner built for Jeff Davis County (Zone 8a). 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 Jeff Davis 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.