In addition to the wonderful things planted and maintained by the MA 42 (Magistratsabteilung 42 – The municipal parks and gardens services), which does such a good job they deserve a post devoted entirely to their work, there are a number of other things growing in Vienna. This spring I became aware of some communal gardens near the university campus, where dedicated amateur gardeners are growing vegetables and some flowers. It’s a wonderful idea and terrific use of land that was otherwise just being wasted. Here is a photo to show what great results they have already gotten, where the growing season has really just started.
Communal gardens
Not far from there on a traffic circle, beautifully planted in yellow and purple by the park and gardens services, is a sunflower that was planted by an anonymous beautifier:
How do I know that it didn’t plant itself? Because it has a sign:
The sign says: Please water me. THANK YOU! Your Alsergrund “Grätzl*”-Sunflower.
* The word “Grätzl” also deserves its own post, it has so many associations. Short version: It is Viennese dialect and refers to one’s neighborhood.
ecbinvienna 
With some sadness I saw that the “Grätzl-Sunflower” has been knocked down. I tried to right it, but the stalk is too damaged. It couldn’t hold the flower upright any more. 😦