- 1/2 cup Seeds, collected from trees growing in Autumn; chestnuts & acorns work great
- 1 x 15cm (6") Choose a pot roughly 15 cm (6’’) deep with a hole for drainage.
- Fine gravel & Akadama a type of clay you can purchase from a bonsai specialist
- Choose a pot roughly 15 cm (6’’) deep with a hole for drainage.
- The bottom layer (roughly ¼ of the pot) should consist of fine gravel and akadama (a type of clay you can purchase from a bonsai specialist) in a ratio of ½ to ½.
- On top of the bottom layer put akadama, fine gravel and potting compost mixed together in a ratio of ½ to ¼ to ¼. This layer should fill the pot up to roughly 3 cm (1’’).
- Put the seeds on top of the earth and place them 2 to 5 cm (about 1’’ - 2’’) apart, depending on the size of the seeds.
- Cover the seeds with the same ground mixture.
- Rinse a considerable amount of water over the seedbed, but be careful not to disturb the soil surface by using a fine nozzle.
You can collect seeds from trees growing in your area in autumn. Seeds like chestnuts and acorns are easy to find in the forest. Seeds from conifers can be found inside pine-cones. Once you collect the pine-cones you need to store them in a warm place so they will release the seeds from between the scales. Seeds of various tree species are also easily available for purchase in (online) bonsai shops.
Put the prepared seedbed outside on a bright position and keep it damp, but not wet. During the spring the Bonsai seeds will germinate, do not prune or repot the seedlings until the next spring. You can start using small quantities of fertilizer during the summer. After one year the seedlings can be separated and put in bigger pots; it will take at least three years of unrestricted growth before the seedlings are ready for their first training.