🌱 SowWhen
HomeZonesZone 2a › Sunflower

When to plant Sunflower in Zone 2a

In Zone 2a, Sunflower: direct sow outdoors around Jun 5–Jun 26. Expect to harvest around Aug 14–Sep 4.

StepWhen
Direct sow outdoorsJun 5 – Jun 26
HarvestAug 14 – Sep 4

Tip: Direct-sow once frost has passed; sow every two weeks for a long succession of blooms.

Zone 2a averages a last spring frost around Jun 5 and a first fall frost around Aug 25. These are zone averages — look up your ZIP for your exact area.

See the full Zone 2a calendar in the tool →

Other flowers in Zone 2a

Sunflower in nearby zones