Mono (Flower) Monday

Thanks for hosting Trish. Here is the first flower on my mystery plant, now over 2m tall. I used an app to identify it and it came back with a few ideas including Jerusalem Artichokes. Until yesterday I thought that is what I had in the garden but now there is a bright yellow flower up top so I guess it’s a sunflower ( unless Jerusalem Artichokes have yellow flowers). Someone might know. In extras are some other flowers I captured. I was going to blip the ? Nerium but preferred the light on the main. 

Addit. Jerusalem Artichokes are a type of sunflower. Interesting what you find out when you start looking for more information.