When to Plant Microgreens in Aitkin County, MN
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.
Aitkin County, Minnesota is in USDA Zone 3b. The average last spring frost is May 9 and the first fall frost is October 3, giving you a growing season of approximately 147 days.
At an elevation of 1,188 feet, Aitkin County receives approximately 35 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Microgreens to ensure they mature before fall.
Aitkin County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Microgreens Planting Timeline — Aitkin County, MN
Microgreens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 28 | Mar 28 – Apr 11 |
| Transplant Outdoors | May 9 | May 9 – May 23 |
| Direct Sow | May 2 | May 2 – May 23 |
| Harvest | May 16 | May 16 – Jun 13 |
| Fall Sowing | July 11 | Jul 11 – Jul 25 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow Harvest |
| June | Harvest |
| July | Fall Sowing |
| August | — |
| 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 3b
📆 Growing Season
147 days in Aitkin County
Growing Tips for Aitkin 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 Aitkin County, MN?
Aitkin County is in Zone 3b with an average last frost of May 9. Plan your Microgreens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Aitkin County, MN?
Aitkin County, Minnesota is in USDA Hardiness Zone 3b. The average last spring frost is May 9 and first fall frost is October 3.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Aitkin County gardeners in Zone 3b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.