It’s time to kill the lie: goldenrods never have and never will cause hay fever.  

Here’s why not:

Hay fever, and any seasonal allergy, is caused by pollen from plants that are pollinated by the wind, or by spores from plants and fungi that release spores into the air.  In late summer, the main wind pollinated species are ragweed and perhaps some grasses.

Goldenrods are not pollinated by the wind.

Goldenrods are pollinated by insects.  Their pollen grains are heavy and somewhat adhesive so that they stick to the bodies of bugs.  

Goldenrod pollen grains are too heavy and too sticky to blow around.

Goldenrod gets blamed for hay fever because it blooms at the same time as ragweed.  Ragweed has green, inconspicuous flowers that most people miss.

Goldenrod has bright yellow or white flowers that are conspicuous and hard to miss.

Ok, have we got it now?

Repeat after me: 

Goldenrods do not cause hay fever.

GOLDENRODS DO NOT CAUSE HAY FEVER.

GOLDENRODS DO NOT CAUSE HAY FEVER.

If you don’t believe me, use any search engine to check goldenrod and hay fever.  

Or just take a pleasant walk with Matt Candeias to see several species of goldenrods, including a reinforcement of the point of this post: goldenrods do not cause hay fever.

https://www.indefenseofplants.com/blog/2017/9/15/so-many-goldenrods-so-little-time?rq=Solidago

Yes, there will be a quiz.  You already know the question, and the answer.