Here is some general info for USDA zone 8b to help you get started.
Average Date of Last Frost (spring) | March 15 |
Average Date of First Frost (fall) | November 15 |
Lowest Expected Low | 15°F |
Highest Expected Low | 20°F |
This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.
Below is a list of planting guides for Zone 8b.
Vegetables
Herbs
Flowers