When Do You Stop Watering Potatoes

Wait until the tops of the vines have completely died before you begin harvesting. When the vines are dead, it is a sure sign the potatoes have finished growing and are ready to be harvested.

Can you overwater potatoes?

Risks of over-watering potatoes This slows plant growth, increases the likelihood of rot, and can be highly detrimental to yield and quality. Early in the season, over-watering can result in misshapen tubers. Later in the season, it increases the likelihood of powdery scab and lenticel growth.