When to Plant Basil in Ingham County, MI
Basil is a fragrant warm-season herb essential to Italian and Thai cuisines. It comes in many varieties including sweet, Thai, purple, and lemon types.
Ingham County, Michigan is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 13, giving you a growing season of approximately 164 days.
At an elevation of 554 feet, Ingham County receives approximately 31.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Basil to ensure they mature before fall.
Ingham County Soil Profile
Soil Type
Silt Loam
Soil pH
6.1-7
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Ingham County
How your county's soil matches Basil's growing requirements.
Soil pH
Your soil pH (6.1–7.0) is within Basil's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Ingham County is excellent for Basil — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.3%) — Basil will thrive.
How to Plant Basil
Succession Planting Basil
Sow every 5.7 weeks. Last sowing by Jul 30 to harvest before frost.
Plant Water Budget
Basil Planting Timeline — Ingham County, MI
Basil Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 14 | Mar 14 – Mar 28 |
| Transplant Outdoors | May 16 | May 16 – May 30 |
| Direct Sow | May 9 | May 9 – May 30 |
| Harvest | July 11 | Jul 11 – Sep 12 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Natural rainfall sufficient
📅 Days to Maturity
50–75 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 5b
📆 Growing Season
164 days in Ingham County
Growing Tips for Basil in Ingham County
Direct sow Basil outdoors after May 02 in Ingham County when soil has warmed and frost danger has passed.
General growing tips
Start seeds indoors or direct sow after last frost. Pinch flower buds to extend leaf production. Harvest leaves from the top down, cutting just above a leaf pair.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 150 ft between varieties. Different basil species can cross.
Basil in Other Locations
Frequently Asked Questions
When should I plant Basil in Ingham County, MI?
Ingham County is in Zone 5b with an average last frost of May 2. Plan your Basil planting based on this frost date — see the calendar above for exact timing.
What planting zone is Ingham County, MI?
Ingham County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 13.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Ingham County gardeners in Zone 5b 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.