Australian fir cultivation method prefers a warm and humid environment, grows well in sunny places, and has a certain degree of shade tolerance, but it must avoid strong light exposure in summer. Not tolerant to cold and drought, it is suitable for well-drained, slightly acidic sandy loam rich in humus.
When potting Australian fir, it is better to use a substrate mixed with garden soil, leaf mold soil and peat moss. Potted plants mostly use small seedlings, and suitable flower pots should be selected according to the size of the seedlings. Norfolk Araucaria likes diffused light and should be placed in a bright place in the shed. If it is kept in a dark place for a long time, it should be moved to the sun every few weeks to keep the dark green leaves beautiful. The growing season is long, and it can grow all year round except in summer when the temperature exceeds 32°C.
Water more frequently from spring to autumn, but avoid water accumulation in the pot. When the temperature is high and dry, water should be sprayed on the pot plants and the nearby ground to cool down and increase humidity. Watering should be timely and do not wait for the soil to dry before watering. From late autumn onwards, gradually reduce watering to enhance its cold resistance. Fertilizer should be applied every 2 weeks during the growing season, preferably a compound fertilizer containing nitrogen and potassium. Insufficient fertilizer supply can easily cause branches and leaves to turn yellow.
During the growth process, in order to prevent the main trunk from tilting to one side, it is advisable to repot the plant once every half month to allow the plant to receive even light. In addition, the trunks of saplings are fragile and prone to bending and deformation. It is advisable to erect pillars to fix the trunk from the time of saplings. To prevent the plants from growing too tall, they should be repotted every 2-3 years after spring warms up. Pay attention to protect the side branches at ordinary times to avoid damage and affect the plant shape.
Under normal circumstances, Australian fir branches do not need to be pruned and are allowed to grow naturally. The suitable growth temperature is 10-25℃, and the overwintering temperature is above 5℃. During the winter season, a certain amount of light can be given, and the pot soil should not be too dry. In sunny weather, water should be sprayed to increase the humidity.