When to plant cucumbers in Pennsylvania

Cucumbers
Plant out in Philadelphia
Apr 13–Apr 20

Across Pennsylvania the window opens between April 13 and May 14. Find your city below; the dates follow each town's own average last frost.

Start indoors, Philadelphia
Mar 2–Mar 9
Plant out, Philadelphia
Apr 13–Apr 20
Sow outdoors, Philadelphia
Apr 6–Apr 20
Last sowing for a harvest
Aug 25
Last frost, Philadelphia
Mar 30

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Cucumbers rot in cold soil. Sow when the soil is at least 65°F.

Cucumbers planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
PhiladelphiaApr 13–Apr 20
PittsburghMay 2–May 9
AllentownMay 4–May 11
ReadingApr 28–May 5
ErieMay 10–May 17
BethlehemMay 4–May 11
ScrantonMay 7–May 14
LancasterMay 3–May 10
LevittownMay 5–May 12
HarrisburgApr 29–May 6
YorkMay 10–May 17
Wilkes-BarreMay 7–May 14
AltoonaMay 9–May 16
State CollegeMay 4–May 11
Penn HillsApr 30–May 7
NorristownApr 22–Apr 29
ChesterApr 13–Apr 20
Mount LebanonMay 2–May 9
Bethel ParkMay 2–May 9
EastonMay 2–May 9
HazletonMay 14–May 21
Drexel HillApr 16–Apr 23
MonroevilleMay 6–May 13
WilliamsportMay 9–May 16
LebanonMay 4–May 11
PlumApr 30–May 7
King of PrussiaApr 22–Apr 29
ChambersburgMay 2–May 9
PottstownMay 4–May 11
CarlisleMay 7–May 14
All 35 cities
CityStart indoorsPlant outSow outdoorsLast frost
PhiladelphiaMar 2 to Mar 9Apr 13 to Apr 20Apr 6 to Apr 20Mar 30
PittsburghMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
AllentownMar 23 to Mar 30May 4 to May 11Apr 27 to May 11Apr 20
ReadingMar 17 to Mar 24Apr 28 to May 5Apr 21 to May 5Apr 14
ErieMar 29 to Apr 5May 10 to May 17May 3 to May 17Apr 26
BethlehemMar 23 to Mar 30May 4 to May 11Apr 27 to May 11Apr 20
ScrantonMar 26 to Apr 2May 7 to May 14Apr 30 to May 14Apr 23
LancasterMar 22 to Mar 29May 3 to May 10Apr 26 to May 10Apr 19
LevittownMar 24 to Mar 31May 5 to May 12Apr 28 to May 12Apr 21
HarrisburgMar 18 to Mar 25Apr 29 to May 6Apr 22 to May 6Apr 15
YorkMar 29 to Apr 5May 10 to May 17May 3 to May 17Apr 26
Wilkes-BarreMar 26 to Apr 2May 7 to May 14Apr 30 to May 14Apr 23
AltoonaMar 28 to Apr 4May 9 to May 16May 2 to May 16Apr 25
State CollegeMar 23 to Mar 30May 4 to May 11Apr 27 to May 11Apr 20
Penn HillsMar 19 to Mar 26Apr 30 to May 7Apr 23 to May 7Apr 16
NorristownMar 11 to Mar 18Apr 22 to Apr 29Apr 15 to Apr 29Apr 8
ChesterMar 2 to Mar 9Apr 13 to Apr 20Apr 6 to Apr 20Mar 30
Mount LebanonMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
Bethel ParkMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
EastonMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
HazletonApr 2 to Apr 9May 14 to May 21May 7 to May 21Apr 30
Drexel HillMar 5 to Mar 12Apr 16 to Apr 23Apr 9 to Apr 23Apr 2
MonroevilleMar 25 to Apr 1May 6 to May 13Apr 29 to May 13Apr 22
WilliamsportMar 28 to Apr 4May 9 to May 16May 2 to May 16Apr 25
LebanonMar 23 to Mar 30May 4 to May 11Apr 27 to May 11Apr 20
PlumMar 19 to Mar 26Apr 30 to May 7Apr 23 to May 7Apr 16
King of PrussiaMar 11 to Mar 18Apr 22 to Apr 29Apr 15 to Apr 29Apr 8
ChambersburgMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
PottstownMar 23 to Mar 30May 4 to May 11Apr 27 to May 11Apr 20
CarlisleMar 26 to Apr 2May 7 to May 14Apr 30 to May 14Apr 23
Allison ParkMar 19 to Mar 26Apr 30 to May 7Apr 23 to May 7Apr 16
New CastleApr 2 to Apr 9May 14 to May 21May 7 to May 21Apr 30
MurrysvilleMar 25 to Apr 1May 6 to May 13Apr 29 to May 13Apr 22
BaldwinMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18
PhoenixvilleMar 21 to Mar 28May 2 to May 9Apr 25 to May 9Apr 18

Questions

When should I plant cucumbers in Pennsylvania?

In Philadelphia, plant out from April 13 to April 20. Across Pennsylvania the window opens between April 13 and May 14, depending on the local last frost.

How is this date worked out?

Start seeds indoors 3–4 weeks before the last frost; plant out 2–3 weeks after the last frost; sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Pennsylvania

Cucumbers in other states

Frost dates for every city in Pennsylvania