When to plant leeks in Maryland

Plant out in Baltimore

Mar 10–Mar 24

Across Maryland the window opens between March 10 and April 10. Find your city below; the dates follow each town's own average last frost.

Start indoors, Baltimore: Dec 30–Jan 13
Plant out, Baltimore: Mar 10–Mar 24
Last frost, Baltimore: Mar 24

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Plant leeks deep in a trench and fill it in as they grow to get long white stems.

Leeks planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

BaltimoreMar 10–Mar 24

ColumbiaMar 22–Apr 5

FrederickMar 19–Apr 2

GermantownMar 31–Apr 14

WaldorfApr 3–Apr 17

Silver SpringMar 27–Apr 10

Ellicott CityMar 19–Apr 2

Glen BurnieMar 27–Apr 10

GaithersburgMar 18–Apr 1

RockvilleMar 18–Apr 1

BethesdaMar 26–Apr 9

DundalkMar 10–Mar 24

BowieApr 8–Apr 22

SevernMar 27–Apr 10

Bel Air SouthMar 27–Apr 10

TowsonMar 19–Apr 2

Aspen HillMar 18–Apr 1

WheatonMar 18–Apr 1

North BethesdaMar 18–Apr 1

PotomacMar 18–Apr 1

OdentonMar 27–Apr 10

HagerstownMar 28–Apr 11

CatonsvilleMar 10–Mar 24

EssexMar 10–Mar 24

AnnapolisMar 13–Mar 27

Severna ParkMar 13–Mar 27

ClintonMar 20–Apr 3

OlneyMar 18–Apr 1

RandallstownMar 19–Apr 2

Owings MillsMar 19–Apr 2

All 68 cities

City	Start indoors	Plant out	Last frost
Baltimore	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Columbia	Jan 11 to Jan 25	Mar 22 to Apr 5	Apr 5
Frederick	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Germantown	Jan 20 to Feb 3	Mar 31 to Apr 14	Apr 14
Waldorf	Jan 23 to Feb 6	Apr 3 to Apr 17	Apr 17
Silver Spring	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Ellicott City	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Glen Burnie	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Gaithersburg	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Rockville	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Bethesda	Jan 15 to Jan 29	Mar 26 to Apr 9	Apr 9
Dundalk	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Bowie	Jan 28 to Feb 11	Apr 8 to Apr 22	Apr 22
Severn	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Bel Air South	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Towson	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Aspen Hill	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Wheaton	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
North Bethesda	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Potomac	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Odenton	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Hagerstown	Jan 17 to Jan 31	Mar 28 to Apr 11	Apr 11
Catonsville	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Essex	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Annapolis	Jan 2 to Jan 16	Mar 13 to Mar 27	Mar 27
Severna Park	Jan 2 to Jan 16	Mar 13 to Mar 27	Mar 27
Clinton	Jan 9 to Jan 23	Mar 20 to Apr 3	Apr 3
Olney	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Randallstown	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Owings Mills	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
College Park	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Chillum	Jan 4 to Jan 18	Mar 15 to Mar 29	Mar 29
Pikesville	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Montgomery Village	Jan 20 to Feb 3	Mar 31 to Apr 14	Apr 14
Salisbury	Jan 9 to Jan 23	Mar 20 to Apr 3	Apr 3
Pasadena	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Milford Mill	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Middle River	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Bel Air North	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Eldersburg	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Parkville	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Laurel	Jan 11 to Jan 25	Mar 22 to Apr 5	Apr 5
Crofton	Jan 28 to Feb 11	Apr 8 to Apr 22	Apr 22
Clarksburg	Jan 20 to Feb 3	Mar 31 to Apr 14	Apr 14
Perry Hall	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Carney	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Reisterstown	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
South Laurel	Jan 11 to Jan 25	Mar 22 to Apr 5	Apr 5
Lochearn	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Ilchester	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Fairland	Jan 11 to Jan 25	Mar 22 to Apr 5	Apr 5
Elkridge	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Ballenger Creek	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Fort Washington	Jan 9 to Jan 23	Mar 20 to Apr 3	Apr 3
North Laurel	Jan 11 to Jan 25	Mar 22 to Apr 5	Apr 5
Edgewood	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Greenbelt	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Suitland	Jan 4 to Jan 18	Mar 15 to Mar 29	Mar 29
Landover	Jan 4 to Jan 18	Mar 15 to Mar 29	Mar 29
North Potomac	Jan 7 to Jan 21	Mar 18 to Apr 1	Apr 1
Arnold	Jan 2 to Jan 16	Mar 13 to Mar 27	Mar 27
Cockeysville	Jan 8 to Jan 22	Mar 19 to Apr 2	Apr 2
Camp Springs	Jan 9 to Jan 23	Mar 20 to Apr 3	Apr 3
Langley Park	Jan 16 to Jan 30	Mar 27 to Apr 10	Apr 10
Hyattsville	Jan 4 to Jan 18	Mar 15 to Mar 29	Mar 29
Arbutus	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Rosedale	Dec 30 to Jan 13	Mar 10 to Mar 24	Mar 24
Westminster	Jan 30 to Feb 13	Apr 10 to Apr 24	Apr 24

Questions

When should I plant leeks in Maryland?

In Baltimore, plant out from March 10 to March 24. Across Maryland the window opens between March 10 and April 10, depending on the local last frost.

How is this date worked out?

Start seeds indoors 10–12 weeks before the last frost; plant out up to 2 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Maryland

Leeks in other states

Frost dates for every city in Maryland