When we started planting around the trees on our block we did not think too much about protecting them. We started by scattering some seeds one night and several months later we had a make shift street garden. Perhaps the biggest challenge of street gardening is letting go. Once something is on the street anything can happen. We found this out soon as the flowers we planted were picked, or trampled on. A lot of people get off of Muni buy our block so we get much more foot traffic than our neighbors. Over time I thought we need to put up a fence around the trees. This would keep the dogs at a distance and offer a little protection. We started with a simple wire fence from the hardware store. These were cheap but did not hold up very well when a drunk person stumbles on to them on a friday night. Next I thought to add a wooden frame to hang the wire fence on. The guy up the street had done this and it looked pretty sturdy. Well it worked well for a little while but what we found is that people like to smash stuff. A wooden frame wire fence just doesn't hold up when someone is feeling destructive. Readers of this blog will know that I used to take it pretty bad when someone smashed them up. After fixing them too many times I finally decided that I needed to make a commitment and build a real flower bet around the trees. One that could take most abuse the neighborhood could throw at it.
I do not know what the psychological barrier was in my head. Somehow I thought putting a perminiate bed around the trees would be too expensive, or my carpentry skills were not up to snuff. Whatever it was I broke thru it. I decided that I was going to start building some serious flower beds. So far I built 3. I plan to build several more however some trees present some challenges because of their roots. I thought I would share my experience of building these flower beds in the hopes that others might find it useful.
The first thing you want to do is to clean up the tree. Even though we have been street gardening for 3 years now a lot of garbage still ends up around the trees. So lets assume you are starting from scratch.
Step One: Tree Cleaning
The first thing you must have is a good pair of gloves! Trees in the city have taken a lot of abuse and you never know what you may find. I often find broken glass, or used syringes. You do not want to come across this stuff with bare hands. (You Grow Girl has a wonderful post of the things you may find in your street garden) I will usually bring an empty soda bottle with me for this task in case I do find a syringe. Sealing it in the bottle will protect someone else from getting stuck with it. (There is a needle exchange behind the Safeway on market on Tuesday evenings. I go there to dispose of any needles I find). You will want to clean out all of the garbage and use a gardening tool to break up the soil and take out any weeds. Frequently we will find buried bits of glass or metal. We usually will add some new topsoil to make a soil mixture a little more friendly to growing. This step is by far the hardest part. It can be very unpleasant work. But if you are willing to undertake it the rewards can be great.
Step 2: Remove soil from the edges
You are going to want to take out about 2 inches of soil all around the edges. You will be building a trench where your flower bed will go beeneth the ground. This step is very important because you will know exactly what you have to work with. What I have frequently found is that when the city cut a hole in the sidewalk for the tree, it is smooth but about 1" under the surface there are rocks are pieces of the sidewalk that will prevent the bed from going down deep enough to anchor properly. If this is the case you will want to have a hammer and a chisel to gently break off any pieces around the edge. You need to be very careful not to crack the side walk. I found most of the rocks in the concrete busted out easly it just took a little work. Leave your self some time as this process can go longer than you might expect.
Step 3: Measure the opening.
My dad always said measure twice cut once. Words to live by! After measuring twice I took off 1/4" off of each measurement. The sidewalk cuts are not always even and wood could be warped a little, having some breathing room is not a bad thing. You will not even notice a 1/4". The next thing you will want to think about is the size of wood you will be using for the bed. I have used 2" x 12". This makes for a pretty big bed about 9-10" above sidewalk level. For this I decided that I needed to take 3" to 3 1/4" off of one side to account for the overlap. (a 2 x 12 is more like a 1 1/2 x 12). What I typically found was that a hole was 35" on one side and 36" on the other. My final measurements (after taking my 1/4" all around and 3" on one side) would come out to be 34+3/4" x 32+3/4. If you use different size board you will want to adjust your math.
Step 4: Got wood?
I went to the Discount Builder Supply on Mission in SF to purchase the lumber. I was able to get a 2x12x12 for about $24 bucks. They charge a quarter per cut so the wood came out to $25. While you are there you will want to buy some "deck screws" as well. They will also reccomend that you treat the wood where it was cut. They sold me some spray to do it with that I have used on all the other fiences I have built and it cost about $10.
Step 5: Install!
It took a little time to make sure that all the boards lined up and that I had cleaned up enough soil to sink them deep. Once they were lined up, I got out my drill and drilled holes for the deck screws. I found my self drilling two holes then screwing in the deck screws, then moving to the other side and repeating. I started with 2 screws on each side but you will probably want to do four to be sure it is extra sturdy.
Step 6: You will want to then fill in all the edges with soil so you car garden straight up to the edge. While this process has take a couple Saturday afternoons it has been so worth it. I am not sure what took me this long. I could not be happier with the results. You can kick these thing and they will not budge. I really feel like they could be there for the next 10 years. We have been able to have some nice plants grow out front and they have been pretty well protected!
I would encourage people to build beds like this if they can. It gives your flowers a lot more protection. Of course it is still the street and anything can happen but at least now your flowers have a fighting chance. I have always wanted to try do put out some containers on on the street but I fear they will be stolen. Having a sturdy bed now means I have something I chain a conter pot to! I hope add some out door containers before the end of summer!
The Before and After