Greetings,

I live in Houston. Landscapers planted Marigolds a few weeks ago in the Texas Medical Center. Despite a light freeze they are doing just fine. Each time I see them with their bright yellow and orange flowers they are a pleasant reminder that winter will not last and summer will come again!

I didn't expect to see Marigolds doing so well this time of year and surviving a frost. How cold hardy are they? Houston is in zone 9.

Thanks!