How long should earthing up potatoes continue?

If the potato row is 30 inches wide, the ridge is usually about 6 inches above soil level. Any higher and the soil runs down as there is a natural angle of repose.

It is better to have soil on the shoulder, rather than taking the ridge to a sharp point, because the potatoes grow in the shoulder of the ridge. The top of the ridge needs to be 4 or 5 inches wide.

The potato stems are covered up (earthed up) two or three times, as they grow.

Click the link for more information on ridging up potatoes.

Earthing up potatoes continues until the row has a rounded ridge which is about 6 inches above ground level.

plant potatoes