When to plant Broccoli in Osage County, MO
Plant Broccoli in Osage County after April 6; the prime window is March 23–April 13. A second sowing from August 21 to September 4 extends the harvest into fall.
When to Plant Broccoli in Osage County, MO
Broccoli is a nutrient-dense cool-season crop that produces large central heads followed by smaller side shoots. It is one of the most popular garden vegetables.
Osage County, Missouri is in USDA Zone 6b. The average last spring frost is April 6 and the first fall frost is October 30, giving you a growing season of approximately 207 days.
At an elevation of 1,300 feet, Osage County receives approximately 38.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Broccoli during the growing season.
Osage County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Broccoli to Grow
For a family of 4, plant approximately 12 broccoli plants in about 24 sq ft. In Osage County's 207-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Broccoli Planting Timeline — Osage County, MO
Broccoli Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 2 | Mar 2 – Mar 16 |
| Transplant Outdoors | April 6 | Apr 6 – Apr 20 |
| Direct Sow | March 23 | Mar 23 – Apr 13 |
| Harvest | June 8 | Jun 8 – Jul 20 |
| Fall Sowing | August 21 | Aug 21 – Sep 4 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
207 days in Osage County
Growing Tips for Osage County
Start seeds indoors 6-8 weeks before last frost. Provide consistent moisture to prevent hollow stems. Harvest heads before yellow flowers appear.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 1/2 mile from other brassicas. Biennial — must overwinter roots.
Broccoli in Other Locations
Frequently Asked Questions
When should I plant Broccoli in Osage County, MO?
Osage County is in Zone 6b with an average last frost of April 6. Plan your Broccoli planting based on this frost date — see the calendar above for exact timing.
What planting zone is Osage County, MO?
Osage County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 6 and first fall frost is October 30.
When should I plant Broccoli in Osage County, MO?
In Osage County, MO, plant Broccoli after the last frost (around April 6) and before the first frost (around October 30). Best results when soil holds above 50°F.
What growing zone is Osage County, MO for Broccoli?
Osage County sits in USDA Zone 6b. Broccoli grows reliably in zones 2a through 11b, so it's a good fit here.
Can Broccoli grow in Osage County's climate?
Yes — Broccoli grows well in Osage County's temperate climate. Osage County averages a 207-day frost-free season, with last frost around April 6 and first frost around October 30.
Your Osage County Garden Planner — Free
A 22-page printable planner built for Osage County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.