When to plant cauliflower 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: Jan 13–Jan 27
Plant out, Baltimore: Mar 10–Mar 24
Fall planting, Baltimore: Aug 29–Sep 12
Last frost, Baltimore: Mar 24

Start seeds indoors 8–10 weeks before the last frost; plant out up to 2 weeks before the last frost; sow again for fall 10–12 weeks before the first frost. When heads reach the size of an egg, tie the leaves over them to keep them white.

Cauliflower 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	Fall planting	Last frost
Baltimore	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Columbia	Jan 25 to Feb 8	Mar 22 to Apr 5	Aug 17 to Aug 31	Apr 5
Frederick	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 14 to Aug 28	Apr 2
Germantown	Feb 3 to Feb 17	Mar 31 to Apr 14	Aug 6 to Aug 20	Apr 14
Waldorf	Feb 6 to Feb 20	Apr 3 to Apr 17	Aug 4 to Aug 18	Apr 17
Silver Spring	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 9 to Aug 23	Apr 10
Ellicott City	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Glen Burnie	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Gaithersburg	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Rockville	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Bethesda	Jan 29 to Feb 12	Mar 26 to Apr 9	Aug 8 to Aug 22	Apr 9
Dundalk	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Bowie	Feb 11 to Feb 25	Apr 8 to Apr 22	Jul 30 to Aug 13	Apr 22
Severn	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Bel Air South	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 7 to Aug 21	Apr 10
Towson	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Aspen Hill	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Wheaton	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
North Bethesda	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Potomac	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Odenton	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Hagerstown	Jan 31 to Feb 14	Mar 28 to Apr 11	Aug 5 to Aug 19	Apr 11
Catonsville	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Essex	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Annapolis	Jan 16 to Jan 30	Mar 13 to Mar 27	Aug 21 to Sep 4	Mar 27
Severna Park	Jan 16 to Jan 30	Mar 13 to Mar 27	Aug 21 to Sep 4	Mar 27
Clinton	Jan 23 to Feb 6	Mar 20 to Apr 3	Aug 16 to Aug 30	Apr 3
Olney	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Randallstown	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Owings Mills	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
College Park	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 9 to Aug 23	Apr 10
Chillum	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 16 to Aug 30	Mar 29
Pikesville	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Montgomery Village	Feb 3 to Feb 17	Mar 31 to Apr 14	Aug 6 to Aug 20	Apr 14
Salisbury	Jan 23 to Feb 6	Mar 20 to Apr 3	Aug 15 to Aug 29	Apr 3
Pasadena	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Milford Mill	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Middle River	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Bel Air North	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 7 to Aug 21	Apr 10
Eldersburg	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Parkville	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Laurel	Jan 25 to Feb 8	Mar 22 to Apr 5	Aug 17 to Aug 31	Apr 5
Crofton	Feb 11 to Feb 25	Apr 8 to Apr 22	Jul 30 to Aug 13	Apr 22
Clarksburg	Feb 3 to Feb 17	Mar 31 to Apr 14	Aug 6 to Aug 20	Apr 14
Perry Hall	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Carney	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Reisterstown	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
South Laurel	Jan 25 to Feb 8	Mar 22 to Apr 5	Aug 17 to Aug 31	Apr 5
Lochearn	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Ilchester	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Fairland	Jan 25 to Feb 8	Mar 22 to Apr 5	Aug 17 to Aug 31	Apr 5
Elkridge	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 8 to Aug 22	Apr 10
Ballenger Creek	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 14 to Aug 28	Apr 2
Fort Washington	Jan 23 to Feb 6	Mar 20 to Apr 3	Aug 16 to Aug 30	Apr 3
North Laurel	Jan 25 to Feb 8	Mar 22 to Apr 5	Aug 17 to Aug 31	Apr 5
Edgewood	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 7 to Aug 21	Apr 10
Greenbelt	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 9 to Aug 23	Apr 10
Suitland	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 16 to Aug 30	Mar 29
Landover	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 16 to Aug 30	Mar 29
North Potomac	Jan 21 to Feb 4	Mar 18 to Apr 1	Aug 14 to Aug 28	Apr 1
Arnold	Jan 16 to Jan 30	Mar 13 to Mar 27	Aug 21 to Sep 4	Mar 27
Cockeysville	Jan 22 to Feb 5	Mar 19 to Apr 2	Aug 15 to Aug 29	Apr 2
Camp Springs	Jan 23 to Feb 6	Mar 20 to Apr 3	Aug 16 to Aug 30	Apr 3
Langley Park	Jan 30 to Feb 13	Mar 27 to Apr 10	Aug 9 to Aug 23	Apr 10
Hyattsville	Jan 18 to Feb 1	Mar 15 to Mar 29	Aug 16 to Aug 30	Mar 29
Arbutus	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Rosedale	Jan 13 to Jan 27	Mar 10 to Mar 24	Aug 29 to Sep 12	Mar 24
Westminster	Feb 13 to Feb 27	Apr 10 to Apr 24	Jul 28 to Aug 11	Apr 24

Questions

When should I plant cauliflower 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 8–10 weeks before the last frost; plant out up to 2 weeks before 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 Maryland

Cauliflower in other states

Frost dates for every city in Maryland