When to plant Mint in Clinton County, IN
Clinton County sits in cold Zone 6a. Plant Mint April 29–May 13 for the single annual harvest; the October 17 first frost closes the window.
When to Plant Mint in Clinton County, IN
Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.
Clinton County, Indiana is in USDA Zone 6a. The average last spring frost is April 22 and the first fall frost is October 17, giving you a growing season of approximately 178 days.
At an elevation of 1,116 feet, Clinton County receives approximately 39.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Mint during the growing season.
Clinton County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Mint Planting Timeline — Clinton County, IN
Mint Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 29 | Apr 29 – May 13 |
| Harvest | July 1 | Jul 1 – Sep 9 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
High — keep soil consistently moist
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
178 days in Clinton County
Growing Tips for Clinton County
Always grow mint in containers or with underground barriers to control spreading. Harvest regularly to keep plants compact. Cut plants back in late summer for a fresh fall flush.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Mint in Other Locations
Frequently Asked Questions
When should I plant Mint in Clinton County, IN?
Clinton County is in Zone 6a with an average last frost of April 22. Plan your Mint planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clinton County, IN?
Clinton County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 22 and first fall frost is October 17.
When should I plant Mint in Clinton County, IN?
In Clinton County, IN, plant Mint after the last frost (around April 22) and before the first frost (around October 17). Best results when soil holds above 50°F.
What growing zone is Clinton County, IN for Mint?
Clinton County sits in USDA Zone 6a. Mint grows reliably in zones 3a through 10b, so it's a good fit here.
Can Mint grow in Clinton County's climate?
Yes — Mint grows well in Clinton County's temperate climate. Clinton County averages a 178-day frost-free season, with last frost around April 22 and first frost around October 17.
Your Clinton County Garden Planner — Free
A 22-page printable planner built for Clinton County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.