Australian fir, an evergreen tree, is generally potted as a young tree with a height of no more than 2 meters. I like warm and humid environment, and the crown is pointed and dark green. The stem is erect, and the lateral branches are spiral and extend horizontally. Branchlets alternate in two rows, extending horizontally or slightly pendulous. There are two types of leaves. These cones are almost round.
: conditions
1. Soil quality: when potted, it is best to use the substrate made of garden soil, humus soil and sphagnum moss;
Second, like diffuse light: it should be placed in a bright place in the shed. If it is kept in the shade for a long time, it should be moved to the sun for proper irradiation every few weeks, so as to keep the dense green leaves beautiful;
3. Growth temperature: it can grow all year round except that the temperature exceeds 32℃ in summer. But the optimum growth temperature is 10 ~ 25℃, and the overwintering temperature is above 5℃
4. Water: During the period from spring to autumn, water more, but avoid water accumulation in the basin. When drying at high temperature, water should be sprayed on potted plants and nearby ground to cool and humidify. Water in time, don't wait for the soil to dry before watering. Since late autumn, watering should be gradually reduced to enhance its cold resistance.
Topdressing: topdressing once every two weeks in the growing season, and compound fertilizer containing nitrogen and potassium is suitable. Insufficient supply of fertilizer tends to turn the branches and leaves yellow.
6. Turn the pot: In the process of growth, in order to avoid the trunk leaning to one side, it is advisable to turn the pot once every half month to make the plants receive light evenly.
Seven, pest control: there are few pests and diseases, and it is harmful to scale insects when it is maintained indoors. Pesticides, chlorpyrifos and organic emulsifiable concentrate can be sprayed, and Guoguang scale insects will die, with good results.
Propagation method of Taxodium ascendens
Taxodium ascendens mainly reproduces by seeds, but cuttings can also reproduce offspring.
1, the seedlings cultivated by sowing are robust and suitable for mass reproduction. Generally, in July and August, newly collected seeds will first destroy the seed coat to promote germination, otherwise the seeds will rot easily if they are left in the soil for a long time, and then the treated seeds will be planted in a sand bed and covered with fine sand of about 1.5 ~ 2 cm. It can germinate in about 2 ~ 3 weeks at 25 ~ 28℃ and a certain humidity, and can be planted immediately after germination.
2. When cutting, if the main shaft or long branches are selected as cuttings, it is easy to cause the crown shape of the plant to be incorrect and can only grow horizontally, which will affect the ornamental value. Cut 2 ~ 3 tips of robust branches that are easy to take root into cuttings, remove some leaves, soak them in clear water overnight, and then insert them into sand beds based on coarse sand or vermiculite. Maintaining the temperature of 20 ~ 25℃ and high air humidity can take root after about 3 months.
Matters needing attention in the cultivation of Australian fir
The cultivation method of Chinese fir likes warm and humid environment, grows well in sunny places and has certain shade tolerance, but strong light should be avoided in summer. Not cold-resistant, cold-resistant, drought-resistant, suitable for slightly acidic sandy loam with good drainage and rich humus.
Production of Australian fir bonsai
When Taxodium ascendens is potted, the mixed substrate of garden soil, humus soil and sphagnum moss is better. Potted plants should choose small seedlings, and choose suitable flowerpots according to the size of seedlings. Norfolk Cedar likes diffuse light and should be placed in a bright place in the shed. If you leave it in the dark for a long time, you should move it to the sun for proper irradiation every few weeks, so as to keep the thick green leaves beautiful. The growing season is long, and it can grow all year round except that the temperature exceeds 32℃ in summer.
During spring to autumn, you should water more, but avoid watering in the basin. When drying at high temperature, water should be sprayed on potted plants and nearby ground to cool and humidify. Water in time, don't wait for the soil to dry before watering. Since late autumn, watering should be gradually reduced to enhance its cold resistance. Topdressing once every two weeks in the growing season, and compound fertilizer containing nitrogen and potassium is suitable. Insufficient supply of fertilizer tends to turn the branches and leaves yellow.
In the process of growth, in order to avoid the trunk leaning to one side, it is advisable to turn over the pot once every half month to let the plants receive light evenly. In addition, the trunk of young trees is fragile and easy to bend and deform, so it is advisable to set up pillars to fix the trunk from the time of young trees. In order to prevent the plants from growing too tall, the flowerpots should be replaced every 2-3 years after warming in spring. Usually, we should pay attention to protect the lateral branches to avoid damage and affect the plant shape.
Under normal circumstances, Australian fir does not need to prune branches and let it grow naturally. The optimum growth temperature is 10 ~ 25℃, and the overwintering temperature is above 5℃. In the wintering season, you can give some light, and the soil in the basin should not be too dry. Water should also be sprayed on sunny days to increase humidity.
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