Last year looks as if someone at a crucial point went away and forgot to water his plants, before he left! This year it's simply gorgeous and neigh perfection!
As usual, the genetics are only part of the battle. We spend a lot of time and money chasing the genetics when maybe we should be focusing more on all of our cultural practices.
I saw a similar improvement with another trianae from one year to the next. Was the plant more mature and larger? I wonder whether it’s a trait of this species,
David