Potato seeds can be obtained at Pitchfork Jeb's Farmer Supply for $0.50 per seed. Each seed yields 10 potatoes. This is one of the few crops that grows best in winter, so it can often be a good choice when other crops aren't growing.
Potatoes are a ROOT Crop
Harvest with: Scythe or Root Crop Harvester
There are many factors that affect growth time. But generally Potatoes should take about 2 to 5 minutes to grow IN SEASON. Consult your Farmer's Almanac if you have questions regarding seasons.
Farming level 3 is required to plant Potatoes.