When to plant Mint in New Haven County, CT
In New Haven County, Mint is a spring-only crop. Plant April 30–May 14 once soil hits 50°F.
When to Plant Mint in New Haven County, CT
Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.
New Haven County, Connecticut is in USDA Zone 6b. The average last spring frost is April 23 and the first fall frost is October 19, giving you a growing season of approximately 179 days.
At an elevation of 509 feet, New Haven County receives approximately 49.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Mint during the growing season.
New Haven County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Mint Planting Timeline — New Haven County, CT
Mint Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 30 | Apr 30 – May 14 |
| Harvest | July 2 | Jul 2 – Sep 10 |
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 6b
📆 Growing Season
179 days in New Haven County
Growing Tips for New Haven 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 New Haven County, CT?
New Haven County is in Zone 6b with an average last frost of April 23. Plan your Mint planting based on this frost date — see the calendar above for exact timing.
What planting zone is New Haven County, CT?
New Haven County, Connecticut is in USDA Hardiness Zone 6b. The average last spring frost is April 23 and first fall frost is October 19.
When should I plant Mint in New Haven County, CT?
In New Haven County, CT, plant Mint after the last frost (around April 23) and before the first frost (around October 19). Best results when soil holds above 50°F.
What growing zone is New Haven County, CT for Mint?
New Haven County sits in USDA Zone 6b. Mint grows reliably in zones 3a through 10b, so it's a good fit here.
Can Mint grow in New Haven County's climate?
Yes — Mint grows well in New Haven County's temperate climate. New Haven County averages a 179-day frost-free season, with last frost around April 23 and first frost around October 19.
Your New Haven County Garden Planner — Free
A 22-page printable planner built for New Haven 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.