How to tell it is ready

Corn salad is ready when each plant has formed a full rosette of several leaves, generally two to four inches across, with leaves that look glossy and feel tender. You do not need to wait for a large plant, and in fact smaller rosettes are the most tender and sweet. Once you see a central stalk starting to rise and stretch, the plant is beginning to bolt and the leaves will turn bitter, so harvest right away.

How to harvest

The tidiest method is to cut the entire rosette at or just above the soil line with scissors or a sharp knife, keeping the little cluster of leaves intact for washing and serving. Alternatively, pick individual outer leaves and leave the growing center in place for a lighter, ongoing harvest. Handle the leaves gently, since they bruise easily.

Timing

Corn salad matures in roughly forty to seventy days from sowing depending on variety and weather, with about sixty days being typical. Harvest in the cool of early morning when the leaves are crisp and full of moisture, and take several passes over a bed rather than pulling everything at once. Spring crops need to be picked promptly as the weather warms, while fall and winter crops can be harvested slowly over a long stretch of cold weather.

After the harvest

Move harvested corn salad out of the sun quickly and get it cool as soon as possible to keep it crisp. Wash it only when you are ready to use it, or if you must wash first, rinse in cool water and dry it thoroughly with a salad spinner or towel before refrigerating. There is no curing step; simply chill it and use it while fresh.

Tips

Sow in small succession plantings every couple of weeks in the cool seasons so you always have young, tender rosettes coming on. In fall and winter, protect the bed with a cold frame or row cover and harvest as needed, since the plants hold better in the garden than in the refrigerator. Let a few plants bolt and go to seed at the end of the season and corn salad will often self-sow a volunteer patch for next year.

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