Pole Bean Growing Season
While each variety of pole bean may differ slightly in time to maturity and growing conditions, the following generally applies to all pole bean varieties.
Pole beans are a warm-weather vegetable and should be planted in late spring, two weeks after the last frost. Pole beans grow best when planted in areas that get an average of six to eight hours of direct sunlight a day. Your pole bean seeds should be planted 1 to 2 inches deep and in rows spaced 30 to 48 inches apart. Pole beans do best in soil with a pH of 6.5.
On average, it takes 70 to 115 days for pole beans to reach maturity, and you will know that they are ready to harvest when the plant has an 18” spread and is 72” to 108” tall. Your pole beans are ready to harvest when the pods are 8” and feel full.