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When to Plant Parsley in Galveston 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.

Galveston County, Texas is in USDA Zone 9a. The average last spring frost is February 5 and the first fall frost is December 7, giving you a growing season of approximately 305 days.

At an elevation of 9 feet, Galveston County receives approximately 72.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 100ยฐF, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsley root diseases.

Galveston County, TX (Zone 9a) Year-round
305 days
Last Spring Frost February 5
305 growing days
First Fall Frost December 7

Galveston County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (198 days to spare)
Start indoors: Dec 21 Transplant: Jan 11 🍅 Harvest: Mar 15 – May 17
Recommended (50%) ✓ Fits season (186 days to spare)
Start indoors: Jan 8 Transplant: Jan 29 🍅 Harvest: Apr 2 – Jun 4
Safe Start (90%) ✓ Fits season (173 days to spare)
Start indoors: Feb 6 Transplant: Feb 27 🍅 Harvest: May 1 – Jul 3

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Only during dry spells
Season total 13 gal / 100 sq ft
Parsley needs ~1,750 GDD — county provides 7,650 GDD Excellent fit

Parsley Planting Timeline โ€” Galveston County, TX

Parsley Planting Calendar

Activity When Date Range
Start Indoors January 8 Jan 8 โ€“ Jan 22
Transplant Outdoors January 29 Jan 29 โ€“ Feb 12
Direct Sow January 15 Jan 15 โ€“ Feb 5
Fall Sowing October 12 Oct 12 โ€“ Oct 26
Harvest April 2 Apr 2 โ€“ Jun 4

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“80 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 9a

Growing Season

305 days

Growing Tips for Galveston County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Parsley in Galveston County, TX?

Galveston County is in Zone 9a with an average last frost of February 5. Plan your Parsley planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Galveston County, TX?

Galveston County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 5 and first fall frost is December 7.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Galveston 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 Galveston County, TX. Local conditions may vary. Last updated: April 2026.