How far apart must you plant spaghetti squash from butternut squash to prevent cross-pollination?
Certified GKH Gardening Expert
Squash may require as much as 500 feet between varieties to prevent cross-pollination. However, you only need to worry about cross-pollination of squash if you save the seeds for planting next year. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/edible/vegetables/vgen/cross-pollination.htm, https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/controlling-cross-pollination.htm