How to Grow a Podocarpus Bonsai: Cultivation Methods and Precautions for Bonsai Podocarpus
The Podocarpus bonsai is a relatively common variety among bonsai, not only because the name Podocarpus is propitious, but also because the Podocarpus has a rather unusual appearance, making it suitable for shaping into different bonsai forms. However, if you want your Podocarpus bonsai to be verdant and vigorous, you need to have a very correct understanding of Podocarpus cultivation and master the right growing methods.
How to Grow a Podocarpus Bonsai
Podocarpus is a semi-shade-tolerant tree that likes a warm, slightly humid environment. For potting, use a fertile, loose, well-drained, slightly acidic sandy soil. Plant in March to April, before the trees bud in spring; the stump or sapling should be kept with plenty of native soil to help it survive and quickly regain vigor. Before planting, prune the roots and branches once.
For Podocarpus, a purple clay (zisha) pot is preferable; the shape and size of the pot should be determined by the tree's styling and the size of the plant. Podocarpus is cold-hardy, but its drought tolerance is not as good as that of the Chinese juniper, so a shallow pot is not suitable; generally use a medium-depth or somewhat deeper pot.
Podocarpus is relatively drought-tolerant, so during the growing season, watering should follow the principle of preferring dry over wet, keeping the potting soil alternately dry and moist. If watered too much and the potting soil stays waterlogged for a long time, it will cause root rot and yellow leaves; in severe cases, a large number of leaves will drop and the plant will die. In the high-temperature summer season, water evaporates quickly, so watering should be more generous; if the potting soil is too dry, the leaves tend to scorch, which also affects the ornamental appearance.
In spring and autumn, applying 2—3 times a dilute liquid fertilizer mainly based on nitrogen fertilizer is enough for good growth. Water once the day after fertilizing, which helps the roots absorb nutrients. Potted plants should be frequently bent and shaped as needed, with plenty of pruning, to improve the ornamental effect. Pruning and pinching back can generally be done during the spring and autumn growing seasons. When the outdoor temperature drops to 5°C in winter, move it indoors; after bringing it indoors, control watering and stop fertilizing. Generally repot once every 2 years, and repotting can be done in either spring or autumn. When repotting, take care to properly trim away excess roots and decayed fibrous roots, and at the same time cut out overly dense branches and add fresh potting soil.
Cultivation Methods and Precautions for Bonsai Podocarpus
1. Soil selection
For potting, use humic acid soil, and never use alkaline soil. Podocarpus likes loose, fertile, well-drained, slightly acidic soil, and is not tolerant of saline-alkaline or barren conditions.
2. Water and fertilizer management
① Watering: Podocarpus is relatively drought-tolerant, so during the growing season, watering should follow the principle of preferring dry over wet, keeping the potting soil alternately dry and moist. If watered too much and the potting soil stays waterlogged for a long time, it will cause root rot and yellow leaves; in severe cases, a large number of leaves will drop and the plant will die. In the high-temperature summer season, water evaporates quickly, so watering should be more generous; if the potting soil is too dry, the leaves tend to scorch, which also affects the ornamental appearance.
② Fertilizing: Potted Podocarpus also needs nutrient supplements. Podocarpus does not like strong fertilizer; during the growing season, use decomposed organic liquid fertilizer at concentrations of 1:6, 1:8, and 1:10, applied once every ten days to half a month, and water once the day after fertilizing, which helps the roots absorb it.
3. Temperature and light
① Temperature: Podocarpus likes warmth and has weak cold hardiness. When the winter temperature drops to 13°C, it enters dormancy, and at this time the minimum temperature should not be lower than 10°C.
② Light: Podocarpus can tolerate shade, but during the growing season it should not be kept stuffy indoors for a long time. This is because indoor light and air humidity are not as good as outdoors, and Podocarpus also needs sunlight and rain to grow and develop.
4. Propagation methods
① Seed propagation: Can be done in August. Generally carried out in an open-ground seedbed. Sow as soon as the seeds are collected. Cover with rice straw, take care to provide shade, and keep the substrate moist. In winter, cover with plastic film to protect against freezing.
② Cutting propagation: Can be done in spring and autumn. For spring cuttings in mid-March, select 1-year-old robust dormant branches as cuttings; for autumn cuttings in July to August, select semi-lignified green branches as cuttings. The cuttings should all have a heel, and take care to provide shade. March is the most suitable time for transplanting.
5. Preventing leggy growth
During the growing period, pay attention to pruning and pinching back plants that have already been shaped, to prevent branches and leaves from growing leggy and to maintain the graceful form of the Podocarpus. When repotting, take care to cut away excess roots and rotted fibrous roots, and at the same time cut out overly dense branches and leggy branches.
6. Preventing cold injury
When the outdoor temperature drops to 5°C in winter, move it indoors; after bringing it indoors, control watering and stop fertilizing.
7. Preventing pests
For potted Podocarpus, usually place it on a high platform or stone pedestal; this can reduce ants, earthworms, and other insects crawling in through the drainage hole at the bottom of the pot and harming the plant.
Does Podocarpus Bloom?
Of course it blooms, but Podocarpus blooming is very rare and not very common. When Podocarpus blooms, its flowers somewhat resemble the stamens inside calla lily flowers, though they are a bit whiter in color. Podocarpus also produces fruit after blooming, but if a Podocarpus bears fruit in the first year, it may not bear fruit again the next year.
The Flower Language of Podocarpus
Podocarpus, as the name suggests, stands firm like an arhat and stays green for a hundred years! It symbolizes longevity, peace and health, wealth, and good fortune. Moreover, Podocarpus symbolizes evergreen through the ages, smooth career, and peace and good fortune, all of which people deeply desire to have. In recent years, some people like to keep a pot of Podocarpus in their study or on the balcony, to encourage themselves to keep striving upward and to bring themselves tireless fighting spirit!
Podocarpus is a plant with very good symbolic meaning. Growing a large Podocarpus bonsai at home can not only cultivate the mind and character, but also provide us with some spiritual motivation, and is very beneficial for fostering the temperament and atmosphere of a home.