Cold hardiness zones 8a and up.
Sow gourd seeds 1/2" deep, and 8 to 12 inches apart along a fence or trellis as soon as the ground is warm enough to work and all danger of frost has passed in spring. To facilitate germination, scrape the seed coat with a file or allow seeds to soak for at least 24 hours. Seeds are very slow to sprout so gardeners should not lose faith. In cold hardiness zone 8a and below, seeds should be started 4-6 weeks before last expected frost.