When to plant Onion in Glades County, FL
Glades County's climate puts the Onion spring window between January 11 and February 1. aim for a steady week of warm soil before planting. A second sowing from October 24 to November 7 extends the harvest into fall.
When to Plant Onion in Glades County, FL
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.
Glades County, Florida is in USDA Zone 10a. The average last spring frost is February 1 and the first fall frost is December 19, giving you a growing season of approximately 321 days.
At an elevation of 434 feet, Glades County receives approximately 54.3 inches of rainfall annually with predominantly sand soil. Summer highs average 101°F, so Onion may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Onion will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Onion root diseases.
Glades County Soil Profile
Soil Type
Sand
Soil pH
5.1-6.3
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 | — | 2.7" | 0" | ❄️ Dormant |
| Feb | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Mar | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| Apr | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| May | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Jun | 4.3" | 8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.7" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7.2" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Nov | 4.3" | 2.3" | 2" | 💧 Light watering |
| Dec | 4.3" | 2.3" | 2" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Glades County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Onion Planting Timeline — Glades County, FL
Onion Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 4 | Jan 4 – Jan 18 |
| Transplant Outdoors | February 1 | Feb 1 – Feb 15 |
| Direct Sow | January 11 | Jan 11 – Feb 1 |
| Harvest | May 3 | May 3 – Jun 21 |
| Fall Sowing | October 24 | Oct 24 – Nov 7 |
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 | — |
| 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 10a
📆 Growing Season
321 days in Glades County
Growing Tips for Glades 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 Glades County, FL?
Glades County is in Zone 10a with an average last frost of February 1. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Glades County, FL?
Glades County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is February 1 and first fall frost is December 19.
When should I plant Onion in Glades County, FL?
In Glades County, FL, plant Onion after the last frost (around February 1) and before the first frost (around December 19). Best results when soil holds above 50°F.
What growing zone is Glades County, FL for Onion?
Glades County sits in USDA Zone 10a. Onion grows reliably in zones 3a through 10b, so it's a good fit here.
Can Onion grow in Glades County's climate?
Yes — Onion grows well in Glades County's temperate climate. Glades County averages a 322-day frost-free season, with last frost around February 1 and first frost around December 19.
Your Glades County Garden Planner — Free
A 22-page printable planner built for Glades County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.