I still have four seed bombs left in a baggie in my purse.....just waiting for the right spot. 8-) (and yes I did make sure there were no invasives in them.)

In the Portland case I linked to above, the parking strip was on property occupied by a religious organization who had contracted with a parking lot operator and that operator did send out a person to pull out all the vegetable plants. I would think every square foot of downtown Portland is under occasional monitoring by some business or company and any guerrilla garden is unlikely to survive.

I didn't know that about Bette Midler! Nice. I planted a Marie Gonzales rose across the street on the corner of some vacant land. Carried water to it in a bucket for weeks to get it going. Smart little rose! It built its own little cage around itself out of thorny dead stems to keep the deer away and bloomed away inside it's cage. I looked across the street one day and saw a man kicking the heck out of it while his wife cheered him on from inside the car. I went marching over there with my hand on my pruning holster and asked him what did he think he was doing! He was trying to kick it loose from the dirt and take it home! I explained that I had planted and nurtured it and to please leave it be and he apologized and drove off. Marie Gonzales later disappeared :-( Anyway that was my one foray into planting on non occupied land. However, another neighbor has planted various cactus and agaves on an traffic island near by and no one has bothered them :-) Happy planting, but be prepared to defend your plants.

I will also use my weed popper on the dandelions in my neighbor's yard. The people on our west side will mow, but don't do anything about the weeds, no trimming of shrubs and don't even edge along the sidewalk or curb. It is a constant battle trying to keep their weeds under control when they get close to my garden. I actually have edging all the way down the property line just inside on our side and will take our string trimmer and scalp their stuff to the ground up to 5 inches away from the edging. My next job is to trim their bradford pear in the back corner of their yard that is severely hanging over the fence onto my garden - not to mention putting weight on the fence that we replaced three years ago. If it is hanging over on our side, it gets cut.