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What to plant in March in Zone 6b

In March, Zone 6b gardeners can start indoors, transplant outdoors, direct-sow — 18 crops have a planting task this month.

Zone 6b frost: last ~04/23, first ~10/20. Dates computed from these and cited extension rules. For your exact town, use the ZIP tool.

Start indoors

TomatoesStart indoorsPeppersStart indoorsEggplantStart indoorsBasilStart indoorsBroccoliStart indoorsCauliflowerStart indoorsBrussels SproutsStart indoorsLettuceStart indoorsSwiss ChardStart indoors

Transplant outdoors

BroccoliTransplant outdoorsCabbageTransplant outdoorsBrussels SproutsTransplant outdoorsKaleTransplant outdoorsLettuceTransplant outdoorsOnionsTransplant outdoorsLeeksTransplant outdoorsParsleyTransplant outdoors

Direct-sow

LettuceDirect-sowSpinachDirect-sowRadishesDirect-sowTurnipsDirect-sowPeasDirect-sow

← February   April →

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