Don't worry about it: I don't know if any body has taken it over the rockies. But it is not supposed to be in california. If some body did take it over then it should still bloom around august 15th .In areas of no frost in southern california, it would behave like in southern florida where it blooms again in the end of april.
Answered 9/21/2017
5.8k views
Western Rageeed: Western ragweed is found throughout much of california. Ragweed season begins most usually in july or august. The further north the earlier.
Answered 8/26/2018
5.8k views
Central Valley may be one area affected, and the summer months are typical until early fall. If you suspect a ragweed allergy, please discuss testing by blood or skin testing with your PCP.
Answered 3/7/2021
0 views
9 doctors weighed in across 3 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question