|Draft (under way)
|tiny garden in the public domain, generally directly bordering a private house facade, operated by the resident of that house. Usually in an urban context, replacing just a few paving stones in the sidewalk with some greenery.
leisure=garden + garden:type=facade_garden is used to identify miniature gardens in urban areas. How to recognize them:
- perched against a private facade. The focus isn't on the facade itself; often it contains just flowers and shrubs
- replaces existing pavement, usually a hole in the sidewalk
- very small, usually just a meter or so along the facade, and about 30 cm deep
- not operated by the government, but rather a private initiative (this is usally recognizable by the very "personal style" of the little garden) - permitted or even encouraged by the governement. Usually you need a permit to open the space, or there is a list where you can create the space without a special permit. This is NOT about "guerrilla gardening" of underused bare ground, but about creation of a new space where a sidewalk used to be.
In Dutch they are known as "geveltuin" (facade garden) or "tegeltuin" (paving stone garden"), there's a Dutch language wikipedia article about them.
Since they are very small, it's probably only useful as a node. When micromapping, it could conceivable be used on ways or areas.
Some sub-tags are introduced in the tagging section.
While tiny, local governments encourage the creation of these gardens for their perceived positive effect on neighborhood livability, air quality and heat island effect. It is unclear if this concept is known in other countries than Belgium and Holland, so it is unknown if facade_garden is the best possible description.
An alternative could be leisure=facade_garden. That would avoid data consumers would have to treat these facade gardens very differently based on a specific value of the subtag, as all other gardens are of a much more significant. Since this is a very local phenomenon, there will almost unvoidably be places where the map is cluttered with facade gardens. However, this can already happen with the current use of gardens, including green walls.
|If needed, a description of some aspects of the garden
|Orientation of the garden. In this case, the garden faces directly South. (0=North, 90=East, etc.)
|Depends on orientation and nearby features. Plants when sold usually come with some info about their need of sun (full sunshine, semi shadowed, shadow). The type of plants that are thriving can help in the choice of the value. Note: this can be hard to tell, just skip if you're uncomfortable with it.
|What types of plants are planted? Can be several.
|Whether there is an on-site rain barrel. Assumed to be no.
|Year, month or exact date the garden was set up.
|(location of the file)
|Image depicting the garden. Note that this usually requires taking a picture of the facade, which can cause privacy concerns in some countries.
|Whether some of the plants are edible (see Proposed features/Plant descriptors)
Please comment on the discussion page.