I like the sunflower with no flower. That is cool and I have never seen that before. Very informative I now know more about sunflowers. Now I won't be using the formula you provided, haha. I'm hoping to see some commercial fields of them next week when I'm on vacation. 🌻 😁
That's my favorite too. Each flower is interesting in its own way, but there's none like thee sunflower. I need to study that formula, but I have a lot on my plate, so it'll have to wait.
Enjoy your vacation and take some photos of those beautiful sunflowers :)