FrostCal

When to Plant Oregano in Pennsylvania

In a typical Pennsylvania location, start seeds indoors Feb 23 – Mar 9, then transplant outdoors Apr 20 – Apr 27. Across the state, the outdoor planting window starts as early as Mar 30 in Philadelphia and as late as May 15 in Hermitage.

Method Start indoors, then transplant
Days to maturity 80–90 days

Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.

Oregano Planting Dates by City

CityStart indoorsTransplant
PhiladelphiaFeb 2 – Feb 16Mar 30 – Apr 6
PittsburghFeb 27 – Mar 13Apr 24 – May 1
AllentownFeb 23 – Mar 9Apr 20 – Apr 27
ErieMar 1 – Mar 15Apr 26 – May 3
ReadingFeb 17 – Mar 3Apr 14 – Apr 21
ScrantonFeb 26 – Mar 12Apr 23 – Apr 30
BethlehemFeb 23 – Mar 9Apr 20 – Apr 27
BensalemFeb 24 – Mar 10Apr 21 – Apr 28
LancasterFeb 22 – Mar 8Apr 19 – Apr 26
AbingtonFeb 14 – Feb 28Apr 11 – Apr 18
LevittownFeb 24 – Mar 10Apr 21 – Apr 28
HavertownFeb 2 – Feb 16Mar 30 – Apr 6
HarrisburgFeb 18 – Mar 4Apr 15 – Apr 22
AltoonaFeb 28 – Mar 14Apr 25 – May 2
YorkMar 1 – Mar 15Apr 26 – May 3
State CollegeFeb 23 – Mar 9Apr 20 – Apr 27
Wilkes-BarreFeb 26 – Mar 12Apr 23 – Apr 30
NorristownFeb 11 – Feb 25Apr 8 – Apr 15
ChesterFeb 2 – Feb 16Mar 30 – Apr 6
Mount LebanonFeb 21 – Mar 7Apr 18 – Apr 25
Bethel ParkFeb 21 – Mar 7Apr 18 – Apr 25
WayneFeb 11 – Feb 25Apr 8 – Apr 15
RadnorFeb 11 – Feb 25Apr 8 – Apr 15
WilliamsportFeb 28 – Mar 14Apr 25 – May 2
MonroevilleFeb 25 – Mar 11Apr 22 – Apr 29
Cranberry TownshipFeb 11 – Feb 25Apr 8 – Apr 15
Drexel HillFeb 5 – Feb 19Apr 2 – Apr 9
PlumFeb 19 – Mar 5Apr 16 – Apr 23
Back MountainFeb 26 – Mar 12Apr 23 – Apr 30
EastonFeb 21 – Mar 7Apr 18 – Apr 25

Showing the 30 most populous of 121 Pennsylvania cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Pennsylvania cities.

Frequently Asked Questions

When should I plant oregano in Pennsylvania?

In a typical Pennsylvania location, start seeds indoors Feb 23 – Mar 9, then transplant outdoors Apr 20 – Apr 27. Across the state, the outdoor planting window starts as early as Mar 30 in Philadelphia and as late as May 15 in Hermitage.

When is the last frost in Pennsylvania?

The average last spring frost in Pennsylvania ranges from March 30 in Philadelphia to May 15 in Hermitage, based on NOAA 1991–2020 climate normals.

How long do oregano take to grow?

Oregano typically take 80–90 days from planting to harvest. Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date.

Other Crops in Pennsylvania

When to plant oregano in other states

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