Since potato plants do not grow true to seed, the most reliable method in which to grow potatoes is by planting tubers. All of our bulk potatoes seed for sale are non-GMO certified, and this makes them healthier to eat. This may make the potato the perfect carb for athletes — and to help prevent low potassium. Purple potato is a group of varieties that are both purple is skin and flesh, it has various benifit for human health and is now becoming more and more popular all accross the world.