Question: Where can I find the frost-free dates for my county, and how do I use them in planting my flowers and vegetables?

Answer: Your country Extension office will have that information for all 254 counties in Texas. Remember that the average date of the last killing frost in the spring simply means that there is still a 50 percent chance of another killing frost on that date. To be really secure in planting cold-sensitive plants such as tomatoes, peppers, beans or marigolds, zinnias or moss rose, you need to wait a couple of weeks after the average date of the last killing freeze.