When to plant sweet potatoes in Maryland

Sweet potatoes
Plant out in Baltimore
Apr 14–Apr 28

Across Maryland the window opens between April 14 and May 15. Find your city below; the dates follow each town's own average last frost.

Plant out, Baltimore
Apr 14–Apr 28
Last sowing for a harvest
Jul 10
Last frost, Baltimore
Mar 24

Plant out 3–5 weeks after the last frost. Set out slips when the soil is warm, around 65°F. They need a long, hot season.

Sweet potatoes planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BaltimoreApr 14–Apr 28
ColumbiaApr 26–May 10
FrederickApr 23–May 7
GermantownMay 5–May 19
WaldorfMay 8–May 22
Silver SpringMay 1–May 15
Ellicott CityApr 23–May 7
Glen BurnieMay 1–May 15
GaithersburgApr 22–May 6
RockvilleApr 22–May 6
BethesdaApr 30–May 14
DundalkApr 14–Apr 28
BowieMay 13–May 27
SevernMay 1–May 15
Bel Air SouthMay 1–May 15
TowsonApr 23–May 7
Aspen HillApr 22–May 6
WheatonApr 22–May 6
North BethesdaApr 22–May 6
PotomacApr 22–May 6
OdentonMay 1–May 15
HagerstownMay 2–May 16
CatonsvilleApr 14–Apr 28
EssexApr 14–Apr 28
AnnapolisApr 17–May 1
Severna ParkApr 17–May 1
ClintonApr 24–May 8
OlneyApr 22–May 6
RandallstownApr 23–May 7
Owings MillsApr 23–May 7
All 68 cities
CityPlant outLast frost
BaltimoreApr 14 to Apr 28Mar 24
ColumbiaApr 26 to May 10Apr 5
FrederickApr 23 to May 7Apr 2
GermantownMay 5 to May 19Apr 14
WaldorfMay 8 to May 22Apr 17
Silver SpringMay 1 to May 15Apr 10
Ellicott CityApr 23 to May 7Apr 2
Glen BurnieMay 1 to May 15Apr 10
GaithersburgApr 22 to May 6Apr 1
RockvilleApr 22 to May 6Apr 1
BethesdaApr 30 to May 14Apr 9
DundalkApr 14 to Apr 28Mar 24
BowieMay 13 to May 27Apr 22
SevernMay 1 to May 15Apr 10
Bel Air SouthMay 1 to May 15Apr 10
TowsonApr 23 to May 7Apr 2
Aspen HillApr 22 to May 6Apr 1
WheatonApr 22 to May 6Apr 1
North BethesdaApr 22 to May 6Apr 1
PotomacApr 22 to May 6Apr 1
OdentonMay 1 to May 15Apr 10
HagerstownMay 2 to May 16Apr 11
CatonsvilleApr 14 to Apr 28Mar 24
EssexApr 14 to Apr 28Mar 24
AnnapolisApr 17 to May 1Mar 27
Severna ParkApr 17 to May 1Mar 27
ClintonApr 24 to May 8Apr 3
OlneyApr 22 to May 6Apr 1
RandallstownApr 23 to May 7Apr 2
Owings MillsApr 23 to May 7Apr 2
College ParkMay 1 to May 15Apr 10
ChillumApr 19 to May 3Mar 29
PikesvilleApr 23 to May 7Apr 2
Montgomery VillageMay 5 to May 19Apr 14
SalisburyApr 24 to May 8Apr 3
PasadenaMay 1 to May 15Apr 10
Milford MillApr 23 to May 7Apr 2
Middle RiverApr 14 to Apr 28Mar 24
Bel Air NorthMay 1 to May 15Apr 10
EldersburgApr 23 to May 7Apr 2
ParkvilleApr 23 to May 7Apr 2
LaurelApr 26 to May 10Apr 5
CroftonMay 13 to May 27Apr 22
ClarksburgMay 5 to May 19Apr 14
Perry HallApr 23 to May 7Apr 2
CarneyApr 23 to May 7Apr 2
ReisterstownApr 23 to May 7Apr 2
South LaurelApr 26 to May 10Apr 5
LochearnApr 23 to May 7Apr 2
IlchesterMay 1 to May 15Apr 10
FairlandApr 26 to May 10Apr 5
ElkridgeMay 1 to May 15Apr 10
Ballenger CreekApr 23 to May 7Apr 2
Fort WashingtonApr 24 to May 8Apr 3
North LaurelApr 26 to May 10Apr 5
EdgewoodMay 1 to May 15Apr 10
GreenbeltMay 1 to May 15Apr 10
SuitlandApr 19 to May 3Mar 29
LandoverApr 19 to May 3Mar 29
North PotomacApr 22 to May 6Apr 1
ArnoldApr 17 to May 1Mar 27
CockeysvilleApr 23 to May 7Apr 2
Camp SpringsApr 24 to May 8Apr 3
Langley ParkMay 1 to May 15Apr 10
HyattsvilleApr 19 to May 3Mar 29
ArbutusApr 14 to Apr 28Mar 24
RosedaleApr 14 to Apr 28Mar 24
WestminsterMay 15 to May 29Apr 24

Questions

When should I plant sweet potatoes in Maryland?

In Baltimore, plant out from April 14 to April 28. Across Maryland the window opens between April 14 and May 15, depending on the local last frost.

How is this date worked out?

Plant out 3–5 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Maryland

Sweet potatoes in other states

Frost dates for every city in Maryland