Unlike apples, cherries, pears, and even compared to plums, peaches are not big trees, even when grown on standard root stock. You can maintain them at easy harvesting height. They will also naturally bear earlier than other fruits on standard stock. Dwarf stock tends to reduce the longevity of trees, and peaches are already relatively short lived fruit trees. So, unless you have a compelling reason to use dwarf root stock, such as intending to grow them in a container, you might have better long-term results going with standard sized peach stock.
