@kqcrna Karen, I have noticed that some are much more fragrant than others. Some lacked the intensity, of scent, than some others from the same pkt. Here, they can sell inexpensive packets. I am uncertain about seeds I had saved, as they ended up in a plastic bag, out back, when I moved. But can always get some more, as sometimes they go on sale for only 10 cents a packet!
Yes, those" hummingbird moths" can get busy at night & probably help pollinate the flowers. I usually have blooms by June, when sown early...