I've had some delphiniums for many years. Some have been short lived but re-seeded. If I start them in January in the house they usually bloom the first year from seed. I also have one of the little larkspur type ones and it re-seeds but doesn't live over. The New Zealand Ones are the strongest stemmed ones for me, the other tall ones have to have support.
A couple of my favorites.
The last one is the little larkspur kind called blue mirror.
