Propagation of the fir tree is possible, but not that easy. You can only grow a second indoor fir tree with a little patience.
Propagating an indoor fir is not as easy as many think. With one method, the process takes a long time, with the other, the appearance of the mother plant is impaired.
If these two aspects don't bother you, you can grow another tree. In addition to a lot of patience, however, some conditions must also be created so that the plant can develop well.
➜ Indoor fir propagation via top cuttings
Cuttings can come from different parts of the plant. A distinction is made between head cuttings, stem or partial cuttings, leaf cuttings and root cuttings. A head cutting is always a shoot tip. Choose shoots that have a branch whorl and a central bud. Cut four centimeters below the branch knot. The best time for pruning is winter.
❶ Fill the nursery pot with a nutrient-poor substrate. Plant the cutting so deep that the branch knot just sticks out of the ground.
❷ Then water the plant with stale water or rainwater and stretch cling film over the pot.
❸ An even temperature between 18 and 22 degrees is favourable. You must air the film daily to prevent mold from forming. In addition, the substrate should always be kept slightly moist.
❹ The addition of a rooting hormone, such as that from NEUDORFF, promotes root formation. Rooting hormones come in powder, solution, or tablet form. But pay attention to the exact dosage. Too much will result in root breakdown and cutting death.
It takes about two to three months for the cutting to root. Place the young plant in a larger pot and, as is usual with indoor firs, ensure it is in a light location. The indoor fir thrives best in rather cool rooms. She does not like direct sunlight. It is ideal for an east-facing window or in a conveniently located or shaded conservatory.
» The disadvantage of propagation by cuttings: TheInterfaces on the room fir do not grow over again. The aesthetics of the mother plant suffers as a result. If you want to avoid this, you might consider propagating by seed.
➜ Propagating indoor firs via seeds
Only fresh seed, which you can buy in specialist shops, is suitable for propagation by seed. The best time for sowing is in spring.
❶ Fill seed pots with a peat-sand mixture. Only one seed goes into each pot. Cover the substrate with moistened peat moss (sphagnum), such as that from Gardman. Do not water, otherwise there is a risk of rotting!
❷ Place the pots in a shady, well-ventilated spot during the summer months. Temperatures between 18 and 25 degrees are ideal. The sphagnum draws moisture from the air and transfers it to the inside of the pot.
❸ The young plants develop until autumn. The young indoor firs overwinter indoors at temperatures of around ten to twelve degrees. From time to time you should water very carefully. The substrate should not dry out, but must not become too moist.