Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow . Feel free to bring flowering stems of goldenrod indoors – with insect-disseminated pollen it doesn’t cause allergies. It’s ragweed that makes copious amounts of nose-tickling pollen so light weight that winds blow it far and wide. Our most common ragweed is Ambrosia artesimifolia (no one seems to know why it’s called Ambrosia – the food of the Gods), and usually it tops out at a couple of feet. But in the upper half