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What to plant in March in Zone 5b

In March, Zone 5b gardeners can start indoors, transplant outdoors, direct-sow — 12 crops have a planting task this month.

Zone 5b frost: last ~05/04, first ~10/08. Dates computed from these and cited extension rules. For your exact town, use the ZIP tool.

Start indoors

PeppersStart indoorsEggplantStart indoorsBroccoliStart indoorsCabbageStart indoorsCauliflowerStart indoorsBrussels SproutsStart indoorsKaleStart indoorsLettuceStart indoorsSwiss ChardStart indoors

Transplant outdoors

CabbageTransplant outdoorsKaleTransplant outdoorsOnionsTransplant outdoors

Direct-sow

SpinachDirect-sowPeasDirect-sow

← February   April →

Last verified 2026-07-16. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rules: UNH Extension, Johnny's, UGA Extension.