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What to plant in March in Zone 5b

In March, Zone 5b gardeners can start indoors, transplant outdoors, direct-sow — 19 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 indoors EggplantStart indoors BroccoliStart indoors CabbageStart indoors CauliflowerStart indoors Brussels SproutsStart indoors KaleStart indoors LettuceStart indoors Swiss ChardStart indoors CollardsStart indoors CeleryStart indoors KohlrabiStart indoors ArtichokeStart indoors OreganoStart indoors SageStart indoors ThymeStart indoors

Transplant outdoors

CabbageTransplant outdoors KaleTransplant outdoors OnionsTransplant outdoors CollardsTransplant outdoors KohlrabiTransplant outdoors

Direct-sow

SpinachDirect-sow PeasDirect-sow

← February April →

Last verified 2026-08-28. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rules: UNH Extension, Johnny's, UGA Extension.