WhenPlant

Home › Zones › Zone 4a › August

What to plant in August in Zone 4a

In August, Zone 4a gardeners can sow for fall harvest — 2 crops have a planting task this month.

Zone 4a frost: last ~05/14, first ~09/27. Dates computed from these and cited extension rules. For your exact town, use the ZIP tool.

Sow for fall harvest

SpinachSow for fall harvestRadishesSow for fall harvest

← July   September →

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