When to Plant Onion in Kenedy 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.
Kenedy County, Texas is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 13, giving you a growing season of approximately 303 days.
At an elevation of 1,757 feet, Kenedy County receives approximately 58.7 inches of rainfall annually with predominantly loam soil. Summer highs average 101°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.
Kenedy County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Onion Planting Timeline — Kenedy 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 18 | Oct 18 – Nov 1 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | Fall Sowing |
| November | Fall Sowing |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 9b
📆 Growing Season
303 days in Kenedy County
Growing Tips for Kenedy 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
Check more plant combinations with our Companion Planting Checker →
Onion in Other Locations
Frequently Asked Questions
When should I plant Onion in Kenedy County, TX?
Kenedy County is in Zone 9b with an average last frost of February 13. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kenedy County, TX?
Kenedy County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 13.
Your Kenedy County Garden Planner — Free
A 22-page printable planner built for Kenedy County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.