FrostCal

When to Plant Thyme in Connecticut

In a typical Connecticut location, start seeds indoors Feb 21 – Mar 7, then transplant outdoors Apr 18 – Apr 25. Across the state, the outdoor planting window starts as early as Apr 5 in Bridgeport and as late as May 8 in Torrington.

Method Start indoors, then transplant
Days to maturity 85–95 days

Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.

Thyme Planting Dates by City

CityStart indoorsTransplant
BridgeportFeb 8 – Feb 22Apr 5 – Apr 12
New HavenFeb 20 – Mar 6Apr 17 – Apr 24
StamfordFeb 20 – Mar 6Apr 17 – Apr 24
North StamfordFeb 20 – Mar 6Apr 17 – Apr 24
HartfordFeb 20 – Mar 6Apr 17 – Apr 24
WaterburyMar 1 – Mar 15Apr 26 – May 3
NorwalkFeb 20 – Mar 6Apr 17 – Apr 24
DanburyFeb 23 – Mar 9Apr 20 – Apr 27
East NorwalkFeb 20 – Mar 6Apr 17 – Apr 24
New BritainFeb 20 – Mar 6Apr 17 – Apr 24
West HartfordFeb 20 – Mar 6Apr 17 – Apr 24
BristolFeb 28 – Mar 14Apr 25 – May 2
MeridenMar 1 – Mar 15Apr 26 – May 3
HamdenFeb 21 – Mar 7Apr 18 – Apr 25
FairfieldFeb 8 – Feb 22Apr 5 – Apr 12
West HavenFeb 20 – Mar 6Apr 17 – Apr 24
MilfordFeb 8 – Feb 22Apr 5 – Apr 12
StratfordFeb 8 – Feb 22Apr 5 – Apr 12
City of Milford (balance)Feb 8 – Feb 22Apr 5 – Apr 12
East HartfordFeb 20 – Mar 6Apr 17 – Apr 24
MiddletownMar 1 – Mar 15Apr 26 – May 3
EnfieldFeb 24 – Mar 10Apr 21 – Apr 28
SouthingtonMar 1 – Mar 15Apr 26 – May 3
SheltonFeb 28 – Mar 14Apr 25 – May 2
NorwichFeb 17 – Mar 3Apr 14 – Apr 21
TrumbullFeb 8 – Feb 22Apr 5 – Apr 12
West TorringtonMar 13 – Mar 27May 8 – May 15
TorringtonMar 13 – Mar 27May 8 – May 15
GlastonburyFeb 20 – Mar 6Apr 17 – Apr 24
NaugatuckFeb 21 – Mar 7Apr 18 – Apr 25

Showing the 30 most populous of 86 Connecticut cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Connecticut cities.

Frequently Asked Questions

When should I plant thyme in Connecticut?

In a typical Connecticut location, start seeds indoors Feb 21 – Mar 7, then transplant outdoors Apr 18 – Apr 25. Across the state, the outdoor planting window starts as early as Apr 5 in Bridgeport and as late as May 8 in Torrington.

When is the last frost in Connecticut?

The average last spring frost in Connecticut ranges from April 5 in Bridgeport to May 8 in Torrington, based on NOAA 1991–2020 climate normals.

How long do thyme take to grow?

Thyme typically take 85–95 days from planting to harvest. Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.

Other Crops in Connecticut

When to plant thyme in other states

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