Seward Climate I am currently not a resident of Alaska but have lived in Anchorage previously for several years. I raised a garden in every one of those years. However, because my husband and I thought we might consider retiring somewhere in Alaska I wanted to do some research on where would be best based on the longest growing season. I found that Seward, Alaska has the longest frost-free growing season in southern Alaska. From mid to end of April through September and possibly mid-October. The climate zone according to Read More …