The thing I miss most about the US right now is having a garden. This was a bit sublimated when we had the roof terrace, but now that we have been here in our 3rd (4th) floor apartment for over a year, the cellar is a bit crowded with all the pots and garden things that used to be in active use and no longer are. One of the things that we did this year was till an area at the kita because they wanted to start a garden. We also gave them a few of our pots for the back area and I enjoy seeing them put to use.
There are actually "Kleingarten Kolonies" here in Berlin, but they aren't the community gardens that I am used to in the States, leased at a nominal fee and actually used for gardening. The ones here seem to be permanent temporary summer residences, usually with a building taking up much of the square footage and where Germans sleep and grill and live during summers (electricity, water and satellite dishes seen on the roofs). They range from 6,000€ to 34,000€ and really are not possible if all one wants is to raise some tomatoes. If we actually stay in Berlin long-term and don't get a small place back in the US for summers, we will probably start looking at one of these.
(crosspost to other blog)