Oregano, lots of varieties. I grow Hill Top Oregano in south Texas year round, it blooms, reseeds, and is now 3 or 4 years old. Yes, it likes heat, not sure if the plant could handle snow, but the seeds would return in Spring. It makes a mound in my garden and I harvest and dry and send to the kids spice collections- I had just moved it as it was growing in a small kids wading pool for 2 years while I built it a bed.