Designer Kazutoyo Yamamoto has made a nice flower pot called Strata, made from biomass plastic and sand.
One seed grows up powerful like father and the geniality like mother in this pot. The people becomes a foster parent of tree and it raises it from the seed to the sapling. Then a tree returns to the earth when it is planted in the ground.
How it works:
The seed of the tree such as acorns is first gathered from the park or the coppice.
The seed is planted in Strata and it raises it.
The sapling and strata are planted in the soil.
The strata made from biomass plastic and sand is resolved by the power of bacteria. And return to the soil.
The seed become a good nursery tree and return to Mother Earth.