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When to Plant Leeks in Jim Hogg County, TX

Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.

Jim Hogg County, Texas is in USDA Zone 9a. The average last spring frost is February 16 and the first fall frost is December 5, giving you a growing season of approximately 292 days.

At an elevation of 4,270 feet, Jim Hogg County receives approximately 59.4 inches of rainfall annually with predominantly loam soil. Summer highs average 96ยฐF, so Leeks may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Jim Hogg County, TX (Zone 9a) Year-round
292 days
Last Spring Frost February 16
292 growing days
First Fall Frost December 5

Jim Hogg County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Start indoors: Dec 29 Transplant: Jan 26 🍅 Harvest: Apr 27 – Jul 13
Recommended (50%) ✓ Fits season (124 days to spare)
Start indoors: Jan 19 Transplant: Feb 16 🍅 Harvest: May 18 – Aug 3
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Feb 17 Transplant: Mar 17 🍅 Harvest: Jun 16 – Sep 1

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 Jim Hogg County

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

Soil pH

Your soil pH (6.2โ€“7.3) overlaps with Leeks's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Jim Hogg County is excellent for Leeks โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Leeks.

How to Plant Leeks

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Plant Water Budget

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

Monthly Watering Guide for Leeks

Leeks needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Leeks Needs Rainfall You Supplement Action
Jan โ€” 1.3" 0" โ„๏ธ Dormant
Feb 3.5" 2" 1.5" ๐Ÿ’ง Light watering
Mar 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Apr 3.5" 6.6" 0" โœ… Rainfall sufficient
May 3.5" 9.2" 0" โœ… Rainfall sufficient
Jun 3.5" 10.7" 0" โœ… Rainfall sufficient
Jul 3.5" 6.6" 0" โœ… Rainfall sufficient
Aug 3.5" 6.9" 0" โœ… Rainfall sufficient
Sep 3.5" 5.8" 0" โœ… Rainfall sufficient
Oct 3.5" 3.6" 0" โœ… Rainfall sufficient
Nov 3.5" 2" 1.5" ๐Ÿ’ง Light watering
Dec 3.5" 1.4" 2.1" ๐Ÿšฟ Regular watering

Water needs are for active growing months only (Febโ€“Dec in Jim Hogg County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Leeks 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.

Leeks needs ~2,640 GDD — county provides 6,446 GDD Excellent fit

Leeks Planting Timeline โ€” Jim Hogg County, TX

Leeks Planting Calendar

Activity When Date Range
Start Indoors January 19 Jan 19 โ€“ Feb 2
Transplant Outdoors February 16 Feb 16 โ€“ Mar 2
Direct Sow January 26 Jan 26 โ€“ Feb 16
Harvest May 18 May 18 โ€“ Aug 3
Fall Sowing October 10 Oct 10 โ€“ Oct 24

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

90โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

292 days in Jim Hogg County

Growing Tips for Leeks in Jim Hogg County

Direct sow Leeks outdoors after February 16 in Jim Hogg County when soil has warmed and frost danger has passed.

With summer highs reaching 96ยฐF in Jim Hogg County, provide afternoon shade for Leeks and water deeply in the morning.

Common pests for Leeks in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Leeks in Jim Hogg County, TX?

Jim Hogg County is in Zone 9a with an average last frost of February 16. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jim Hogg County, TX?

Jim Hogg County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 16 and first fall frost is December 5.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Jim Hogg County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Jim Hogg County, TX. Local conditions may vary. Last updated: April 2026.