How long do Annuals live (until what month)?

Question

I planted Annuals in May. What month can I expect them to bloom until? The area I live it's in the high 60's in end of Sept.

Answer 1

Most annuals will live until the first hard frost.  That varies by area, and also can vary from year to year.  

Answer 2

A biannual plant is a plant that takes 2 years to flower, annual is one that flowers every year. So in the spring it comes up and in the Autumn it dies for the winter

Answer 3

Until a killing frost.  

Answer 4

varies by plant, but you can usually count on the first good frost to finish them off.

mums sometimes last longer, especially if protected.