Sowing and propagation of Araucaria

The seed coat of Araucaria is solid, so the germination rate is relatively low. In order to solve this problem, it is best to break the seed coat before sowing to promote its germination

Before sowing, the soil should be sterilized at high temperature, or mixed with Carbendazim and other liquid agents in the soil to avoid the occurrence of diseases and pests

Generally, it can germinate about 30 days after sowing. During this period, the temperature should be kept at 15-25 degrees and the humidity should be 70% - 80%, which is conducive to seed germination

Cutting propagation of Araucaria lanceolata

Cutting propagation is easy to survive for Araucaria, so it is generally carried out in spring and summer

The main branch of Araucaria lanceolata should be selected as the cutting, and the lateral branch is easy to skew. The length of the cutting is 10-15 cm. The base of the cutting can be soaked in 200 ppm indole butyric acid (IBA) for 5 hours before cutting, which will take root in advance

The matrix can be composed of 40% peat soil, 40% rotten leaf soil and 20% river sand

After cutting, keep 18 ℃ - 25 ℃, pour water and keep the basin soil moist. It can be slightly dry in winter and take root in about 4 months

Precautions for propagation of Araucaria

Sown seedlings are vulnerable to diseases and insect pests, so the soil must be disinfected

If you want to get more cuttings, you can cut the top of the young tree to make the top produce more new shoots, which can be cut down in spring for cuttings, and the cut plants can still continue to grow terminal buds as long-term reproductive mother plants

During the growth period, if the basin soil is too dry, the leaves of Araucaria will become soft and droop, so it is necessary to water appropriately

The temperature in winter should not be too low. Too low a temperature will cause the Araucaria lanceolata to suffer freezing injury and die easily