Increase with cuttings
Who wants to attract a second Japanese Cedar fir, which is the way to recommend about cuttings. In fact, faster and more successful results can be expected than with sowing. In this way, bonsai can also be created, which gradually grow to perfection in miniature size with a little patience and care.
It is best to separate the cuttings from the tree at the end of autumn, whereby a size of 15 to 20 cm is ideal. When cutting, be sure to use as sharp a pruning shears as possible to keep the cut as smooth and small as possible. At the same time, the cut should be kept at an angle, so that water can flow well when it rains and the rest of the shoot will not rot.
Prepare and set cuttings
The cut cuttings must now be freed from the pine needles on their lower part. But you should be careful, so that the bark is not damaged and can find no cuts, which could prevent the germination and damage to the shoot, the breeding. Now you need a sufficiently large flowerpot, which is to be filled with humushaltiger, but nutrient-poor soil . The cuttings are inserted into these – about as deep that they are half covered. A cling film over the flower pot helps to accelerate the rooting of the shoot and favor.
The flower pot with the cuttings or several cuttings should be placed at best in a frost-protected place with plenty of light – so they can overwinter and root. But they need a regular water supply, because the earth must always be kept moist. So that no mold is created or the cutting begins to rot, the cling film should be aired every two days at the latest and replaced if necessary to minimize germs. If the offshoots have already taken root, they should (if not already done from the beginning) be separated from each other and come into their own flowerpots – otherwise their roots become entangled, so that they are hardly separable later, without damaging the root system.
Increase over sowing
You can also propagate the Japanese Cactus by sowing seeds. If you already have a copy at home, you can win it from the pine cones. You can also use purchased seeds.
You should be aware that propagating through seeding takes a lot of time and it takes a lot of patience and time to take care of the seedlings. It can take years before a reasonably robust young tree has developed, which can be put into the garden and can also successfully hibernate there.
When propagating by sowing, you can work with a cold frame and cling film to speed up the sprouting of the seedlings. A slightly sunny, middle-warm place is ideal for this. Make sure that the soil of the seedlings – at best humus-containing and slightly enriched with nutrients – is always kept moist. Waterlogging is to be avoided , as well as mold formation due to insufficient ventilation. Also in this way the cling film should be often ventilated and changed. If the seedlings are big enough, they are allowed to move into a large flower pot. As already mentioned, it takes years, however, to turn the small, tender seedlings into young trees that can really withstand the European weather in the garden.