The best time to plant runner beans is when the threat of frost is over and the ground has started to warm, according to The Organic Gardener. Soaking the seed prior to planting may help with germination.
Runner beans are a nutritious vegetable crop that is known to be more flavorful than French beans. These beans leave the ground rich in nitrogen, according to The Organic Gardener. Runner beans require some supports as they grow. Plant runner beans in a firm and moisture-retentive soil. The soil should not have any nitrogen-rich fertilizer added, as nitrogen-fixing bacteria already grow in the root nodules.