When to plant Onion in Lawrence County, MO
Aim to plant Onion in Lawrence County on or after March 26; the window stays open through April 16. Lawrence County's 199-day frost-free season gives you enough for a full main crop and a short fall succession. A second sowing from August 16 to August 30 extends the harvest into fall.
When to Plant Onion in Lawrence County, MO
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.
Lawrence County, Missouri is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 25, giving you a growing season of approximately 199 days.
At an elevation of 1,094 feet, Lawrence County receives approximately 38.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Onion during the growing season.
Lawrence County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Onion Planting Timeline — Lawrence County, MO
Onion Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 5 | Mar 5 – Mar 19 |
| Transplant Outdoors | April 9 | Apr 9 – Apr 23 |
| Direct Sow | March 26 | Mar 26 – Apr 16 |
| Harvest | July 9 | Jul 9 – Aug 27 |
| Fall Sowing | August 16 | Aug 16 – Aug 30 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| 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 7a
📆 Growing Season
199 days in Lawrence County
Growing Tips for Lawrence 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 Lawrence County, MO?
Lawrence County is in Zone 7a with an average last frost of April 9. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lawrence County, MO?
Lawrence County, Missouri is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 25.
When should I plant Onion in Lawrence County, MO?
In Lawrence County, MO, plant Onion after the last frost (around April 9) and before the first frost (around October 25). Best results when soil holds above 50°F.
What growing zone is Lawrence County, MO for Onion?
Lawrence County sits in USDA Zone 7a. Onion grows reliably in zones 3a through 10b, so it's a good fit here.
Can Onion grow in Lawrence County's climate?
Yes — Onion grows well in Lawrence County's temperate climate. Lawrence County averages a 199-day frost-free season, with last frost around April 9 and first frost around October 25.
Your Lawrence County Garden Planner — Free
A 22-page printable planner built for Lawrence County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.