Peanuts are generally grown in southern climates, with most coming from China, India, Nigeria, and the southern U.S., which fall within or are similar to USDA hardiness zones 8-11. These areas provide the long summers necessary for peanuts to mature, typically requiring up to 150 days. However, with some planning, home growers as far north as zone 6 can also successfully grow peanuts for snacking, peanut butter, and bragging rights.
In northern areas, direct sowing isn’t feasible due to shorter growing seasons. Instead, growers need to purchase starter plants or begin seeds early indoors or in a greenhouse. Transplant the young plants outdoors two to three weeks after the danger of frost has passed. To ensure success, calculate your first fall frost date and check if there are enough days for your peanut variety to mature: Valencia peanuts require 90-110 days, Spanish 90-120 days, and Virginia and runner types need 130-150 days. If necessary, start seeds indoors early enough to allow for the required maturity period, ensuring not to start too early to avoid leggy, stressed plants.