Zone 4 Planting Calendar

Zone 4 Vegetable Planting and Harvest Chart. Zone 4 generally has a short growing season (about 90–120 days, with last frost in mid-May and first frost in mid-September to early October).


🌱 Vegetable Planting and Harvest Chart for Zone 4

VegetableStart IndoorsDirect Sow OutdoorsTransplant OutdoorsHarvest Time
ArugulaLate April to JulyMay to September
BeetsMay to JulyJune to October
BroccoliMarchMid-May to JuneJuly to September
Brussels SproutsMarchMid-MaySept to Oct (after frost is best)
CabbageMarchMid-MayJuly to Sept
CarrotsLate April to JulyJuly to October
CauliflowerMarchMid-MayJuly to September
CornLate May to early JuneAugust to September
CucumbersApril (optional)Late May to JuneEarly June (if started indoors)August to September
KaleMarchMay to JuneLate MayJune to October
LettuceLate April to JulyMay to September
Onions (sets)April to MayJuly to August
PeasLate April to early MayJune to July
PeppersMarchEarly JuneAugust to September
PotatoesMayAugust to October
PumpkinsApril (optional)Late May to JuneEarly June (if started indoors)Sept to Oct
RadishesLate April to AugustMay to September
SpinachLate April to JuneMay to July
Squash (summer)April (optional)Late May to JuneEarly JuneJuly to September
Squash (winter)April (optional)Late May to JuneEarly JuneSept to Oct
TomatoesMarchEarly JuneAugust to September
TurnipsMay to JulyJuly to October
ZucchiniApril (optional)Late May to JuneEarly JuneJuly to September

Notes for Zone 4 Gardening:

Frost Dates: Last frost ~May 15; First frost ~Sept 15.

Row Covers & Cold Frames can help extend the season.

Succession Planting: Great for crops like lettuce, radishes, spinach, and beans.

Soil Warming: Use black plastic or fabric to warm the soil earlier for heat-loving plants.