Please tell me what this plant is?

Please tell me what this plant is?

These are in a town square in my hometown of Lompoc, CA. I live on the Central Coast of the state. Photobucket Photobucket Photobucket They are over 6' tall, some of them. Thank you so much!
Strange ‘tators

Strange ‘tators

Tropical Lilly in full bloom

Tropical Lilly in full bloom

Pic post

Pic post

I SHOULD know what this is.. but I don’t

I SHOULD know what this is.. but I don’t

Gardeners know all the dirt!

Gardeners know all the dirt!

Sunflower stems ?

Sunflower stems ?