Just a guess, too much nitrogen? Al

I have had years when it is a prolific bloomer and this year, just a few blooms. Don't know why.

Hey Ryse ..Im curious how urs grow ...is it mound-like and bushy or trailing? mine is definitely trailing..the one plant that is blooming has blooms top to bottom ...and not one bloom on the other plant 4 inches to the right in same pot....Maybe mine is too much N :(

That's an interesting question - one I have wondered about. The first year I planted them from seed, (at least 10 years ago) I put them all in pots to give the kids. They all had mound forms and bloomed beautifully. I think I had other experiences like that through the years but the last few years they were more like regular morning glories with trailing.

Is the seed strain corrupted?