When to plant Microgreens in Iron County, MO
In Zone 6b (Iron County), direct-sow Microgreens between April 2 and April 23 for spring, after the April 16 last-frost mark. A second sowing from August 12 to August 26 extends the harvest into fall.
When to Plant Microgreens in Iron County, MO
Microgreens are young seedlings of vegetables and herbs harvested at the cotyledon or first true leaf stage. They pack concentrated flavors and nutrients in a tiny package.
Iron County, Missouri is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 21, giving you a growing season of approximately 188 days.
At an elevation of 1,227 feet, Iron County receives approximately 35.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Microgreens during the growing season.
Iron County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Microgreens Planting Timeline — Iron County, MO
Microgreens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | April 16 | Apr 16 – Apr 30 |
| Direct Sow | April 2 | Apr 2 – Apr 23 |
| Harvest | April 23 | Apr 23 – May 21 |
| Fall Sowing | August 12 | Aug 12 – Aug 26 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
7–21 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
188 days in Iron County
Growing Tips for Iron County
Sow seeds densely on shallow trays of moist growing medium. Cover until germination, then provide light. Harvest with scissors when 1-3 inches tall. Grow year-round indoors.
Microgreens in Other Locations
Frequently Asked Questions
When should I plant Microgreens in Iron County, MO?
Iron County is in Zone 6b with an average last frost of April 16. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Iron County, MO?
Iron County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 21.
When should I plant Microgreens in Iron County, MO?
In Iron County, MO, plant Microgreens after the last frost (around April 16) and before the first frost (around October 21). Best results when soil holds above 50°F.
What growing zone is Iron County, MO for Microgreens?
Iron County sits in USDA Zone 6b. Microgreens grows reliably in zones 1a through 13b, so it's a good fit here.
Can Microgreens grow in Iron County's climate?
Yes — Microgreens grows well in Iron County's temperate climate. Iron County averages a 188-day frost-free season, with last frost around April 16 and first frost around October 21.
Your Iron County Garden Planner — Free
A 22-page printable planner built for Iron 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.