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What to plant in April in Zone 3b

In April, Zone 3b gardeners can start indoors, transplant outdoors, direct-sow — 20 crops have a planting task this month.

Zone 3b frost: last ~05/20, first ~09/19. 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 indoorsSwiss ChardStart indoorsOkraStart indoors

Transplant outdoors

BroccoliTransplant outdoorsCabbageTransplant outdoorsCauliflowerTransplant outdoorsBrussels SproutsTransplant outdoorsKaleTransplant outdoorsLettuceTransplant outdoorsOnionsTransplant outdoorsLeeksTransplant outdoorsSwiss ChardTransplant outdoorsParsleyTransplant outdoors

Direct-sow

LettuceDirect-sowSpinachDirect-sowSwiss ChardDirect-sowRadishesDirect-sowTurnipsDirect-sowBeetsDirect-sowPeasDirect-sow

← March   May →

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