When to plant Cauliflower in Maryland

In spring, from Feb 10 – Mar 10 in Baltimore to Mar 15 – Apr 20 in Westminster.

In fall, from July 1 – Aug 5 in Bowie to Aug 1 – Sept 1 in Takoma Park.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Cauliflower planting dates by place in Maryland
PlaceSpringFall
AberdeenMar 1 – 20July 15 – Aug 15
AnnapolisFeb 20 – Mar 20Aug 1 – Sept 1
BaltimoreFeb 10 – Mar 10Aug 1 – Sept 15
Bel AirMar 1 – 20July 15 – Aug 15
BowieMar 15 – Apr 20July 1 – Aug 5
CambridgeFeb 20 – Mar 20Aug 1 – Sept 1
College ParkMar 1 – 20July 15 – Aug 15
CumberlandMar 1 – 20July 1 – Aug 5
EastonFeb 20 – Mar 20Aug 1 – Sept 1
ElktonMar 1 – 20July 15 – Aug 15
FrederickFeb 20 – Mar 20Aug 1 – Sept 1
GaithersburgFeb 20 – Mar 20Aug 1 – Sept 1
GreenbeltMar 1 – 20July 15 – Aug 15
HagerstownMar 1 – 20July 15 – Aug 15
Havre de GraceMar 1 – 20July 15 – Aug 15
HyattsvilleFeb 20 – Mar 20Aug 1 – Sept 1
La PlataMar 15 – Apr 20July 15 – Aug 15
LaurelMar 1 – 20Aug 1 – Sept 1
New CarrolltonMar 15 – Apr 20July 1 – Aug 5
RockvilleFeb 20 – Mar 20Aug 1 – Sept 1
SalisburyFeb 20 – Mar 20Aug 1 – Sept 1
Takoma ParkFeb 20 – Mar 20Aug 1 – Sept 1
WestminsterMar 15 – Apr 20July 1 – Aug 5

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for cauliflower.