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When to Plant Onion in Bee County, TX

Onions are a fundamental kitchen staple available in yellow, white, and red varieties. Choose long-day, short-day, or intermediate types based on your latitude.

Bee County, Texas is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 11, giving you a growing season of approximately 301 days.

At an elevation of 2,076 feet, Bee County receives approximately 68.3 inches of rainfall annually with predominantly loam soil. Summer highs average 103Β°F, so Onion may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Onion root diseases.

Bee County, TX (Zone 9a) Year-round
301 days
Last Spring Frost February 13
301 growing days
First Fall Frost December 11

Bee County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Monthly Watering Guide for Onion

Onion needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Onion Needs Rainfall You Supplement Action
Jan β€” 1.8" 0" ❄️ Dormant
Feb 4.3" 2.4" 1.9" πŸ’§ Light watering
Mar 4.3" 4.6" 0" βœ… Rainfall sufficient
Apr 4.3" 6.8" 0" βœ… Rainfall sufficient
May 4.3" 10.5" 0" βœ… Rainfall sufficient
Jun 4.3" 9.5" 0" βœ… Rainfall sufficient
Jul 4.3" 8.8" 0" βœ… Rainfall sufficient
Aug 4.3" 8.1" 0" βœ… Rainfall sufficient
Sep 4.3" 7.3" 0" βœ… Rainfall sufficient
Oct 4.3" 3.9" 0.4" πŸ’§ Light watering
Nov 4.3" 2.6" 1.7" πŸ’§ Light watering
Dec 4.3" 1.9" 2.4" 🚿 Regular watering

Water needs are for active growing months only (Feb–Dec in Bee County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Onion Planting Timeline β€” Bee County, TX

Onion Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 23 Jan 23 – Feb 13
Harvest May 15 May 15 – Jul 3
Fall Sowing October 16 Oct 16 – Oct 30

Plant 1" deep Β· 6" apart Β· Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

90–120 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 9a

πŸ“† Growing Season

301 days in Bee County

Growing Tips for Bee County

Start seeds indoors 8-10 weeks before transplanting. Match day-length type to your latitude. Stop watering when tops begin to fall over and cure bulbs for 2-3 weeks before storage.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans
  • Asparagus

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Onion in Bee County, TX?

Bee County is in Zone 9a with an average last frost of February 13. Plan your Onion planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Bee County, TX?

Bee County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 11.

🌱

Plan Your Garden with Confidence

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