About this siteBC-07
About Bonsai Calendar
Bonsai Calendar was built so you can check bonsai work by when to do it.
In this article (6 sections)
How are the timings decided?
The timing of each job for each species is collected by month from published sources. Months are based on lowland Kanto in central Japan.
- When sources disagree, the months both agree on are used
- In colder areas shift a little later, and in warmer areas a little earlier
- The weather of the year also moves things. Watch the buds and the temperature too
Who is Kou, our guide?
Kou is the shoebill character who shows you around this site. In the articles, Kou sums up tips and warnings in speech bubbles.
Kou: Knows everything. Sometimes writes things that are wrong. Sorry in advance.
Hi, I'm Kou. If you're in a hurry, just read my speech bubbles.
Where the information comes from
The months for each species mostly come from calendars published by a bonsai writer for a specialist magazine and by a bonsai nursery, because bonsai museums and garden product makers publish almost no species-by-species calendars. Their guidance is used for cross-checking, and the source of each row is shown below the table. Values with no source are left blank, never guessed.
Photo credits
| Photo | Author | License | |
|---|---|---|---|
 | A Japanese black pine bonsai | Tortie tude | CC0 |
 | A Japanese white pine bonsai | Tortie tude | CC0 |
 | Shimpaku juniper foliage | David J. Stang | CC BY-SA 4.0 |
 | A Japanese maple forest-style bonsai | Ilaria Camprincoli | CC BY-SA 3.0 |
 | A Japanese zelkova bonsai in broom style | Daderot | CC0 |
 | A flowering Japanese apricot (ume) bonsai | サフィル | CC BY-SA 4.0 |
 | Satsuki azalea bonsai on display | Sarah Stierch | CC BY 4.0 |
 | A tree taken out of its pot, showing the root ball | Tangopaso | Public domain |
 | Pine branches with deep wire scars | Ragesoss | CC BY-SA 3.0 |
 | The garden of the Omiya Bonsai Art Museum, Saitama | TypeZero | CC BY-SA 4.0 |
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