planting around street trees - new project

Hi,
I am starting a street wide gardening project to plant under plane trees in London.

I would like to put a small wooden border around the trees so we can add good soil without it washing away. The earth under the trees is currently rock hard sand and gravelly soil. If we put a wooden border up, it would interfere with car doors opening by the curb. I am also wondering how soil might damage the base of the plane trees, even though it will be very low level. A link to good plant choices would also be great.

Any help or thoughts much appreciated.

Thanks

Anna

Just make sure the new soil/compost isn't touching the tree base or it could cause it to rot. Leave a gap around the trunk and it should be okay.

Good luck for your new gardening project.Recently I have shifted in denver and purchased a house . I love gardens  and  redesigned the structure of garden from remodeling denver . In my garden I have planted a variety of plants. For plantation one of the biggest culprits behind trees that fail to grow is the type of soil being used. The wrong soil can weak  plants and may prevent them from getting the moisture, nutrients and sunlight they need to thrive. While the majority of soils are made up of clay, silt and sand, the ratio of these materials can greatly impact the properties of the soil.So take care about the soil you are using and ratio is the most important thing .