Note that the planting times for potatoes don’t follow the usual pattern. Seed Starting Schedule for Zone 8. If you live in or around the Charleston, SC area (Zone 8), here is a handy planting calendar for your garden. The seed packet will usually tell you about when to start seeds in zone 8. The lists are based on planting season (winter, spring, summer, fall) … Here is some general info for USDA zone 8a to help you get started. Zone 8 is considered one of the warmest plant hardiness zones for a large portion of the southern United States. Extending up the western coast, Zone 8 features average minimum winter temperatures of 10 to 20 degrees F. With hot summers and mild winters, growers typically enjoy a long planting … Now it’s time to figure out when to start seeds in zone 8. Average Date of Last Frost (spring) March 15: Average Date of First Frost (fall) November 15: Lowest Expected Low: … Planting Zone 8. Delicious baked, fried or roasted, a potato rounds out almost any meal. Zone 8 Planting Calendar. You’ll have to fine-tune your own seed starting schedule for zone 8, since frost dates vary within the zone. Decked out with toppings, it can stand on its own. Planting in Zone 8a. Some will specify a planting … The high-temperatures of Zones 8 …