Though our Goldenrods are popular garden plants in other parts of the world, in the United States, these plants have been often blamed for causing Hay Fever. This is absolutely not true! Goldenrods are insect pollinated, not wind pollinated. Ragweeds (Ambrosia sp. which are native, ubiquitous annuals with inconspicuous flowers) bloom in the fall & produces huge quantities of wind-borne pollen. Ragweeds, not Goldenrods, are the primary cause of fall Hay Fever!