Outdoor bonsai

These are trees that, by their nature, must be placed outside, ideal for balconies, gardens and terraces

Acer buergerianum

Family

Aceraceae

Origin

China

Etymology

From the latin “acer”, hard, because of the hardness of wood and “buergerianum” because of the botanist Buerger.

Acer buergerianum

Characteristics

Tree of deciduous leaves and fast growth. It is valued for its small and yellow leaves and its bark which flakes off.


Place

In a Mediterranean climate place outside, with plenty of sun during the whole year. To avoid burn marks on the points of leaves it should be protected against the strong noon sun in summer. In colder climates protect against freezing.


Irrigation

Abundant in summer and moderate in spring. It’s convenient to pulverise the leaves with water during summertime because it needs air moisture.


Fertilization

In spring and autumn.

Transplant

Every two years, at the beginning of sprouting in spring.

Substratum

100% Akadama or mixed with 20% of volcanic clay.


Pruning and nipping

Pruning

At the beginning of spring.

Nipping

Done with the tips of your fingers. Nip the new bud and leave only the first two leaves at the point of the branch. Nipping can be done during the whole spring.

Fencing

Spring and autumn.


Curiosities

In Japan it’s one of the most characteristic trees used as a bonsai. It’s one of the most resistant trees to all the techniques of bonsai and is also perfectly adapted to our Mediterranean climate. It’s one of the trees which you can model in a sekijoju style (roots which embrace a rock)


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Acer buergerianum