Dogwoods.  

 Yes, the Dogwoods are worth all the possible pollen in the air! I'll sniffle and sneeze just to see these guys looking so happy all over people's lawns.

Wisteria

 From the pea family.


These things are some thing else! The flowers are huge!

I don't even know what this one is.

 Greet them that be of the [household] of Narcissus, which are in the Lord.