Potatoes are best planted in early spring or as soon as the soil can be worked. The soil should be between 45º to 55ºF, which means you will need to protect your potatoes with a cover if a late frost hits your yard. You don’t want the soil to be overly wet either as this can rot the potatoes. It’s best to wait 2-3 weeks prior to the last frost date for general guidance. However, potatoes can be planted as late as June, so you’re not tied to these dates.