When to plant parsley in Pennsylvania

Plant out in Philadelphia

Mar 16–Apr 6

Across Pennsylvania the window opens between March 16 and April 16. Find your city below; the dates follow each town's own average last frost.

Start indoors, Philadelphia: Jan 19–Feb 2
Plant out, Philadelphia: Mar 16–Apr 6
Sow outdoors, Philadelphia: Mar 9–Mar 30
Last frost, Philadelphia: Mar 30

Start seeds indoors 8–10 weeks before the last frost; plant out from 2 weeks before to 1 weeks after the last frost; sow outdoors up to 3 weeks before the last frost. Soaking seed overnight helps slow-sprouting parsley.

Parsley planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

PhiladelphiaMar 16–Apr 6

PittsburghApr 4–Apr 25

AllentownApr 6–Apr 27

ReadingMar 31–Apr 21

ErieApr 12–May 3

BethlehemApr 6–Apr 27

ScrantonApr 9–Apr 30

LancasterApr 5–Apr 26

LevittownApr 7–Apr 28

HarrisburgApr 1–Apr 22

YorkApr 12–May 3

Wilkes-BarreApr 9–Apr 30

AltoonaApr 11–May 2

State CollegeApr 6–Apr 27

Penn HillsApr 2–Apr 23

NorristownMar 25–Apr 15

ChesterMar 16–Apr 6

Mount LebanonApr 4–Apr 25

Bethel ParkApr 4–Apr 25

EastonApr 4–Apr 25

HazletonApr 16–May 7

Drexel HillMar 19–Apr 9

MonroevilleApr 8–Apr 29

WilliamsportApr 11–May 2

LebanonApr 6–Apr 27

PlumApr 2–Apr 23

King of PrussiaMar 25–Apr 15

ChambersburgApr 4–Apr 25

PottstownApr 6–Apr 27

CarlisleApr 9–Apr 30

All 35 cities

City	Start indoors	Plant out	Sow outdoors	Last frost
Philadelphia	Jan 19 to Feb 2	Mar 16 to Apr 6	Mar 9 to Mar 30	Mar 30
Pittsburgh	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Allentown	Feb 9 to Feb 23	Apr 6 to Apr 27	Mar 30 to Apr 20	Apr 20
Reading	Feb 3 to Feb 17	Mar 31 to Apr 21	Mar 24 to Apr 14	Apr 14
Erie	Feb 15 to Mar 1	Apr 12 to May 3	Apr 5 to Apr 26	Apr 26
Bethlehem	Feb 9 to Feb 23	Apr 6 to Apr 27	Mar 30 to Apr 20	Apr 20
Scranton	Feb 12 to Feb 26	Apr 9 to Apr 30	Apr 2 to Apr 23	Apr 23
Lancaster	Feb 8 to Feb 22	Apr 5 to Apr 26	Mar 29 to Apr 19	Apr 19
Levittown	Feb 10 to Feb 24	Apr 7 to Apr 28	Mar 31 to Apr 21	Apr 21
Harrisburg	Feb 4 to Feb 18	Apr 1 to Apr 22	Mar 25 to Apr 15	Apr 15
York	Feb 15 to Mar 1	Apr 12 to May 3	Apr 5 to Apr 26	Apr 26
Wilkes-Barre	Feb 12 to Feb 26	Apr 9 to Apr 30	Apr 2 to Apr 23	Apr 23
Altoona	Feb 14 to Feb 28	Apr 11 to May 2	Apr 4 to Apr 25	Apr 25
State College	Feb 9 to Feb 23	Apr 6 to Apr 27	Mar 30 to Apr 20	Apr 20
Penn Hills	Feb 5 to Feb 19	Apr 2 to Apr 23	Mar 26 to Apr 16	Apr 16
Norristown	Jan 28 to Feb 11	Mar 25 to Apr 15	Mar 18 to Apr 8	Apr 8
Chester	Jan 19 to Feb 2	Mar 16 to Apr 6	Mar 9 to Mar 30	Mar 30
Mount Lebanon	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Bethel Park	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Easton	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Hazleton	Feb 19 to Mar 5	Apr 16 to May 7	Apr 9 to Apr 30	Apr 30
Drexel Hill	Jan 22 to Feb 5	Mar 19 to Apr 9	Mar 12 to Apr 2	Apr 2
Monroeville	Feb 11 to Feb 25	Apr 8 to Apr 29	Apr 1 to Apr 22	Apr 22
Williamsport	Feb 14 to Feb 28	Apr 11 to May 2	Apr 4 to Apr 25	Apr 25
Lebanon	Feb 9 to Feb 23	Apr 6 to Apr 27	Mar 30 to Apr 20	Apr 20
Plum	Feb 5 to Feb 19	Apr 2 to Apr 23	Mar 26 to Apr 16	Apr 16
King of Prussia	Jan 28 to Feb 11	Mar 25 to Apr 15	Mar 18 to Apr 8	Apr 8
Chambersburg	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Pottstown	Feb 9 to Feb 23	Apr 6 to Apr 27	Mar 30 to Apr 20	Apr 20
Carlisle	Feb 12 to Feb 26	Apr 9 to Apr 30	Apr 2 to Apr 23	Apr 23
Allison Park	Feb 5 to Feb 19	Apr 2 to Apr 23	Mar 26 to Apr 16	Apr 16
New Castle	Feb 19 to Mar 5	Apr 16 to May 7	Apr 9 to Apr 30	Apr 30
Murrysville	Feb 11 to Feb 25	Apr 8 to Apr 29	Apr 1 to Apr 22	Apr 22
Baldwin	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18
Phoenixville	Feb 7 to Feb 21	Apr 4 to Apr 25	Mar 28 to Apr 18	Apr 18

Questions

When should I plant parsley in Pennsylvania?

In Philadelphia, plant out from March 16 to April 6. Across Pennsylvania the window opens between March 16 and April 16, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out from 2 weeks before to 1 weeks after the last frost; sow outdoors up to 3 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Pennsylvania

Parsley in other states

Frost dates for every city in Pennsylvania