When to plant Microgreens in Washington County, MO
Washington County sits in USDA Zone 6b. Plant Microgreens between March 27 (after last frost on April 10) and April 17. A second sowing from August 15 to August 29 extends the harvest into fall.
When to Plant Microgreens in Washington 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.
Washington County, Missouri is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 24, giving you a growing season of approximately 197 days.
At an elevation of 738 feet, Washington County receives approximately 36.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Microgreens during the growing season.
Washington County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Microgreens Planting Timeline — Washington County, MO
Microgreens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 6 | Mar 6 – Mar 20 |
| Transplant Outdoors | April 10 | Apr 10 – Apr 24 |
| Direct Sow | March 27 | Mar 27 – Apr 17 |
| Harvest | April 17 | Apr 17 – May 15 |
| Fall Sowing | August 15 | Aug 15 – Aug 29 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| 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
197 days in Washington County
Growing Tips for Washington 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 Washington County, MO?
Washington County is in Zone 6b with an average last frost of April 10. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Washington County, MO?
Washington County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 10 and first fall frost is October 24.
When should I plant Microgreens in Washington County, MO?
In Washington County, MO, plant Microgreens after the last frost (around April 10) and before the first frost (around October 24). Best results when soil holds above 50°F.
What growing zone is Washington County, MO for Microgreens?
Washington 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 Washington County's climate?
Yes — Microgreens grows well in Washington County's temperate climate. Washington County averages a 197-day frost-free season, with last frost around April 10 and first frost around October 24.
Your Washington County Garden Planner — Free
A 22-page printable planner built for Washington 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.