How to tell it is ready

An ear is ready at the milk stage when silks are brown and dry but the husk is still green and snug. Kernels near the tip should be full sized, and when punctured with a fingernail they release a milky juice. If the juice is clear, it is too early. If kernels are doughy and less juicy, it is overmature.

How to harvest

Grasp the ear, pull it slightly downward, and twist until it snaps from the stalk. Avoid tearing leaves excessively or breaking the stalk if other ears are still developing. Check tip fill by gently opening only a small part of the husk if you are unsure. Harvest quickly once ears reach the right stage.

Timing

Sweet corn is often ready 18 to 24 days after silking, or roughly 70 to 100 days from planting depending on variety and weather. Pick early in the morning when sugar levels and crispness are highest. Main harvest usually comes in midsummer to early fall.

After the harvest

Cool ears immediately because sugars convert to starch soon after harvest. Refrigerate without delay and use as soon as possible for best quality. Keep husks on until you are ready to prepare the ears.

Tips

Plant short successive rows every 1 to 2 weeks if you want a longer harvest window. Waiting for every ear to mature at once is a common mistake. Birds and raccoons often find ripe corn quickly, so check plantings daily near harvest.

General guidance for US home gardens. Timing varies by variety and region; check your local frost dates. Page updated Aug 4, 2026.