When to plant carrots in Pennsylvania

Carrots
Sow outdoors in Philadelphia
Mar 9–Apr 13

Across Pennsylvania the window opens between March 9 and April 9. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Philadelphia
Mar 9–Apr 13
Fall planting, Philadelphia
Aug 25–Sep 8
Last frost, Philadelphia
Mar 30

Sow outdoors from 3 weeks before to 2 weeks after the last frost; sow again for fall 10–12 weeks before the first frost. Keep the seedbed moist until carrots come up. They can take two to three weeks to sprout.

Carrots planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
PhiladelphiaMar 9–Apr 13
PittsburghMar 28–May 2
AllentownMar 30–May 4
ReadingMar 24–Apr 28
ErieApr 5–May 10
BethlehemMar 30–May 4
ScrantonApr 2–May 7
LancasterMar 29–May 3
LevittownMar 31–May 5
HarrisburgMar 25–Apr 29
YorkApr 5–May 10
Wilkes-BarreApr 2–May 7
AltoonaApr 4–May 9
State CollegeMar 30–May 4
Penn HillsMar 26–Apr 30
NorristownMar 18–Apr 22
ChesterMar 9–Apr 13
Mount LebanonMar 28–May 2
Bethel ParkMar 28–May 2
EastonMar 28–May 2
HazletonApr 9–May 14
Drexel HillMar 12–Apr 16
MonroevilleApr 1–May 6
WilliamsportApr 4–May 9
LebanonMar 30–May 4
PlumMar 26–Apr 30
King of PrussiaMar 18–Apr 22
ChambersburgMar 28–May 2
PottstownMar 30–May 4
CarlisleApr 2–May 7
All 35 cities
CitySow outdoorsFall plantingLast frost
PhiladelphiaMar 9 to Apr 13Aug 25 to Sep 8Mar 30
PittsburghMar 28 to May 2Aug 5 to Aug 19Apr 18
AllentownMar 30 to May 4Aug 1 to Aug 15Apr 20
ReadingMar 24 to Apr 28Aug 6 to Aug 20Apr 14
ErieApr 5 to May 10Aug 12 to Aug 26Apr 26
BethlehemMar 30 to May 4Aug 1 to Aug 15Apr 20
ScrantonApr 2 to May 7Jul 28 to Aug 11Apr 23
LancasterMar 29 to May 3Aug 1 to Aug 15Apr 19
LevittownMar 31 to May 5Aug 2 to Aug 16Apr 21
HarrisburgMar 25 to Apr 29Jul 31 to Aug 14Apr 15
YorkApr 5 to May 10Jul 27 to Aug 10Apr 26
Wilkes-BarreApr 2 to May 7Jul 28 to Aug 11Apr 23
AltoonaApr 4 to May 9Jul 29 to Aug 12Apr 25
State CollegeMar 30 to May 4Aug 3 to Aug 17Apr 20
Penn HillsMar 26 to Apr 30Aug 9 to Aug 23Apr 16
NorristownMar 18 to Apr 22Aug 8 to Aug 22Apr 8
ChesterMar 9 to Apr 13Aug 24 to Sep 7Mar 30
Mount LebanonMar 28 to May 2Aug 5 to Aug 19Apr 18
Bethel ParkMar 28 to May 2Aug 5 to Aug 19Apr 18
EastonMar 28 to May 2Aug 2 to Aug 16Apr 18
HazletonApr 9 to May 14Jul 30 to Aug 13Apr 30
Drexel HillMar 12 to Apr 16Aug 18 to Sep 1Apr 2
MonroevilleApr 1 to May 6Aug 2 to Aug 16Apr 22
WilliamsportApr 4 to May 9Aug 1 to Aug 15Apr 25
LebanonMar 30 to May 4Aug 2 to Aug 16Apr 20
PlumMar 26 to Apr 30Aug 9 to Aug 23Apr 16
King of PrussiaMar 18 to Apr 22Aug 8 to Aug 22Apr 8
ChambersburgMar 28 to May 2Aug 2 to Aug 16Apr 18
PottstownMar 30 to May 4Jul 31 to Aug 14Apr 20
CarlisleApr 2 to May 7Jul 26 to Aug 9Apr 23
Allison ParkMar 26 to Apr 30Aug 9 to Aug 23Apr 16
New CastleApr 9 to May 14Jul 31 to Aug 14Apr 30
MurrysvilleApr 1 to May 6Aug 2 to Aug 16Apr 22
BaldwinMar 28 to May 2Aug 5 to Aug 19Apr 18
PhoenixvilleMar 28 to May 2Aug 4 to Aug 18Apr 18

Questions

When should I plant carrots in Pennsylvania?

In Philadelphia, sow outdoors from March 9 to April 13. Across Pennsylvania the window opens between March 9 and April 9, depending on the local last frost.

How is this date worked out?

Sow outdoors from 3 weeks before to 2 weeks after the last frost; sow again for fall 10–12 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Pennsylvania

Carrots in other states

Frost dates for every city in Pennsylvania