I just have to brag a bit- I discovered Sweet Annie (Poa annua Artemisia, I think) several years ago in Louisiana. It grew profusely to about 6'. and when it started to bloom I would cut all the branches, hang them upside down and dry them. I still have some in a vase that are still very aromatic. I would keep some in every room to shake onto the carpet when I ran the vaccuum- it makes the room smell so fresh.!
When I moved to Florida I just could not get it to grow (seeds were the only source I found). When I moved here to WA I ordered seeds and winter sowed them on a windowsill. They are thriving and are beautiful. I will have an abundant harvest this year-several neighbors want to grow it.