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What to plant in March in Zone 6a

In March, Zone 6a gardeners can start indoors, transplant outdoors, direct-sow — 21 crops have a planting task this month.

Zone 6a frost: last ~04/30, first ~10/15. Dates computed from these and cited extension rules. For your exact town, use the ZIP tool.

Start indoors

TomatoesStart indoors PeppersStart indoors EggplantStart indoors BasilStart indoors BroccoliStart indoors CabbageStart indoors CauliflowerStart indoors Brussels SproutsStart indoors KaleStart indoors LettuceStart indoors Swiss ChardStart indoors CollardsStart indoors KohlrabiStart indoors ArtichokeStart indoors OreganoStart indoors SageStart indoors ThymeStart indoors

Transplant outdoors

CabbageTransplant outdoors KaleTransplant outdoors LettuceTransplant outdoors OnionsTransplant outdoors CollardsTransplant outdoors KohlrabiTransplant outdoors

Direct-sow

LettuceDirect-sow SpinachDirect-sow PeasDirect-sow AsparagusDirect-sow

← February April →

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