Flower Garden Planting & Maintenance

Bad Billy asked:


There are a dozen planter boxes on a corner in my neighborhood that have nothing in them but dry dirt.
The planters belong to the city of Los Angeles, CA.
How can I get permission to plant flowers in them?
I could go on a what is called a “gorrilla gardening,” campaign, but watering these planters is problematic, and there is already a sprinkler system at the site, but it is locked.
Please advise.

holiday? asked:


I have some planters full of dry dirt. What would be good to put in there and how? If flowers, what are some good ( low cost) flowers I could plant that grow well in summer in SoCal heat? The area gets some shade and sunlight. I also have a dog who loves to dig, so if there is something else I could put there, those ideas are good too. I have no idea!