The question of how late can you plant potatoes is common among gardeners and farmers. There are also a lot of web pages that try to answer the question. The answer is that it depends on various factors.
The most important thing you want to keep in mind is the weather conditions in your area.
The best time to plant potatoes is after the last frost has passed. In order to determine how late this is, we can break the growing season into different months and use our handy-dandy temperature map.