06/11/2026
Tips For Harvesting Homegrown Potatoes
Shelby Mendoza, OSU Student Farm Assistant Manager
When the foliage on potato plants begins to yellow and die back, it is a sign the potatoes are ready to be harvested. Gardeners can either allow the foliage to die back naturally or cut the foliage back early to begin the harvest process sooner. In either case, stop watering about two weeks before harvest. Allowing the soil to dry helps toughen the potato skins, which improves storage life and reduces damage during harvest.
It is important to harvest potatoes on a day when the soil is dry. Gently dig around the plants with your hands or a garden fork or shovel, taking care not to cut or bruise the potatoes. Damaged potatoes should be used first because they will not store well.
After harvest, you can gently wipe away excess soil from the potatoes, but do not wash them. Washing adds moisture which can encourage rot during storage. Allow the potatoes to air dry briefly in a shaded area with good airflow, but avoid leaving them in sunlight for extended periods, as sunlight can cause potatoes to turn green and develop solanine, a naturally occurring compound that can be toxic if consumed in large amounts.
Potatoes can be eaten immediately after harvest or cured for longer storage. To cure potatoes, place them in a dark, cool location with good airflow for about two weeks. Ideal curing temperatures are around 50-60°F with moderate humidity. During curing, small cuts and scrapes heal and the skins continue to toughen, improving storage life. After curing, gently brush off any remaining soil and store potatoes in a cool, dark, dry location. Do not wash potatoes until you are ready to use them.