Acer buergerianum
SPECIMEN · FROM THE LIBRARY
Acer buergerianum

Acer Buergerianum

Photo · (c) Chuangzao, some rights reserved (CC BY-NC), uploaded by Chuangzao COURTESY INATURALIST
ON THIS PLANT

Acer buergerianum, commonly known as the Trident Maple, is a deciduous tree native to China, Japan, and Korea. Belonging to the Aceraceae family, it can grow up to 30 feet tall with a spread of 20 feet. The tree features a dense crown and multiple trunks covered in gray-brown bark.

The leaves of Acer buergerianum are three-lobed with serrated edges. They are dark green during the summer but transform into striking shades of yellow, orange, and red in the autumn.

In the spring, the Trident Maple produces small, yellow-green flowers that eventually give way to winged samaras, commonly known as "helicopter seeds," which are dispersed by the wind.

This plant is particularly popular among bonsai enthusiasts due to its manageable size and attractive foliage. It also serves as an excellent ornamental tree for gardens and parks, thanks to its beautiful fall colors.

Acer buergerianum thrives in well-drained soil with moderate moisture levels but can tolerate drought conditions once established. It prefers full sun exposure but can adapt to partial shade as well.

Overall, Acer buergerianum is an attractive ornamental plant that provides year-round interest with its beautiful foliage colors throughout the seasons, making it a great addition to any landscape design project or garden setting.

A note from PlantMom

Trident maple has strong resistance to disease and is generally not susceptible to illnesses. In terms of care, this plant is relatively low-maintenance. When grown outdoors it needs only minimal watering, and larger specimens typically do not require pruning; however, smaller plants should be pruned after they have bloomed. Trident maplet is suitable for anyone with an outdoor space, such as a garden or deck, and does not require extensive plant-care experience.

— PlantMom
CARE GUIDE

How to keep Acer Buergerianum.

Light

Trident maple performs best when exposed to abundant light throughout the day, although it can adjust to locations with moderate sunlight. The species originates from habitats rich in light. Both too much and too little light can negatively affect growth and leaf color, harming the trident maple's overall health.

Water

The Trident maple thrives in regions with distinct seasons. It requires moderate moisture, but it can also withstand short periods of drought. Ideally, it should be watered every two weeks. This tree flourishes outdoors, as it benefits from the seasonal temperature and rainfall variations that closely mimic the growth cycles of its natural habitat.

Temperature

Trident maple is native to habitats with temperatures from 32 to 90 °F (0 to 32 ℃). It does well within this temperature range; however, proper adjustment of care during seasonal changes is needed to prevent stress caused by temperature.

Fertilizer

Timing is important when fertilizing Trident maple. Apply fertilizer in early spring and continue monthly until early summer. Fertilizer promotes attractive blooms and provides energy during both dormancy and active growth.

Pruning

The Trident maple is known for its small, three-lobed leaves and robust growth. To maintain its shape and promote airflow, it is best to prune the tree in early spring while it is still dormant. Key pruning techniques include removing dead or crossing branches, which enhances the tree's structural integrity and aesthetic appeal. Regular maintenance is essential for ensuring the tree's healthy growth and vitality.

Pot & Repot

Spring is the ideal time to repot a trident maple, which is a medium-sized deciduous tree. You should repot it every 2-3 years using deep, wide containers. Be sure to use well-draining soil and provide consistent watering after repotting. Additionally, protect your trident maple from strong winds to encourage healthy growth.

Toxicity

The trident maple is non-toxic to humans and pets, but there are no edible uses for the trees byproducts.

Further reading →

The toxicity and danger assessments provided are for reference only. We do not assure their accuracy, so it's crucial not to depend on them. Seek professional advice when necessary for accurate guidance.

CHARACTERISTICS

Botanical profile.

Plant Type
Tree
Life Cycle
Perennial
Genus
Acer
Family
Sapindaceae
Hardiness Zone
3-7
Mature Height
4.88 m to 20.12 m
Mature Spread
6.1 m to 9.14 m
Leaf Color
Green, Red, Yellow, Orange
Leaf Type
Deciduous
Flower Color
Yellow, Green
Flower Size
3.05 cm
Bloom Time
Mid spring, Late spring
Planting Time
Spring, Autumn
Harvest Time
Mid summer
Native Area
Myanmar, Japan, China
ALSO KNOWN AS

Other names.

en Trident maple en Three-toothed maple en Taiwan Trident Maple en Buerger's Maple en Buerger's Acer
FREQUENTLY ASKED

Reader questions.

How should I water my Trident maple tree in the best way?

To promote excellent root development, place a garden hose at the base of the plant. Avoid spraying the leaves directly, as this may require more watering if they are in direct sunlight outdoors. Consider using bubblers or soaker hoses to moisten the roots effectively. When adding or removing plants, use soaker hoses that cover the entire garden or bed to push the roots deeply. It's important to drain any excess water and wait for the soil to dry before watering again. Water at ground level to prevent diseases. On a sunny day, it may be helpful to spray the entire bush with water. Regardless of whether the Trident maple is in a pot or in the ground, remember that it prefers deep watering rather than light sprinkling.

Why should I put fertilizer on my Trident maple tree?

If you own a Trident maple, whether it's the specific kind doesn't matter, regular fertilizer will help it grow healthy. Giving it the right nutrients will make it grow stronger and be more resistant to tough conditions, as well as better able to fight off diseases and pests. The foliage of your Trident maple is one of its most attractive features, so you should make sure to keep it healthy. This means following a regular fertilization schedule that is specific to your Trident maple. By doing so, your Trident maple will have vibrant, colorful leaves and an overall lush appearance.

What are the light requirements for Trident Maple?

Trident Maple requires full sun, which is above 6 hours of sunlight, but it can also thrive in partial sun, about 3-6 hours of sunlight. It's essential to observe how sunlight moves through your garden to choose spots that offer an ideal balance of light and shade for your plants. This species does best in environments with plenty of light exposure throughout the day, though it can adapt to areas with moderate sunlight. Its natural habitat is characterized by ample light, and deviations from this can negatively impact its growth and foliage color.

What is the native environment temperature range for Trident maple?

Trident maple, or Acer buergerianum, is native to environments where temperatures vary between 32 to 90 °F (0 to 32 °C). It thrives in these temperatures, but it requires proper care during seasonal transitions to avoid temperature-related stress. The plant is notably cold-tolerant and does not need additional frost protection measures in winter. However, it's beneficial to water the plant generously before the first freeze in autumn to keep the soil moist, which helps prevent drought and water scarcity during winter and early spring.

What do I need to do if I give the Trident maple tree too much or too little water?

An overwatered Trident maple shows signs such as yellowing, dropping leaves, and wilting. It may also look unhealthy with mushy stems. To address these signs, adjust your watering schedule as needed. On the other hand, wilting can also be a sign of under watering, characterized by crispy and dry leaves. In this case, check the soil and provide a thorough watering when dry. While this will help the tree recover, it may still have dry and yellow leaves due to a damaged root system. Once the tree returns to normal, the yellowing of leaves will cease. If you have a Trident maple indoors, always check the moisture levels in the pot to avoid overwatering. Look out for signs of black spots, and if present, allow the soil to dry by withholding water for a few days. Overwatering can lead to root rot, so transfer the tree to a new pot if you notice discolored and slimy roots. Prevent root rot by avoiding overly soggy soil. When planting a Trident maple outdoors, make sure to dig a little deeper. If you find the soil too dry when checking with your fingers, it could be a sign of underwatering. Adequate watering is necessary to help the tree recover.

When should I fertilize my Trident maple tree?

To ensure healthy growth, it is recommended to fertilize your Trident maple for the first time in late winter or early spring. This provides the tree with essential nutrients to thrive when the weather gets warmer. If you live in a warm climate region, it may be beneficial to fertilize again in early fall. This will not only supply additional nutrients for the following growing season but also make the tree hardier and more capable of withstanding winter cold without foliage damage. Fertilizing earlier will help new branches grow strong enough to endure the cold winter.

How does artificial lighting impact Trident Maple?

Indoor Trident Maple plants require adequate lighting for optimal growth, especially when natural sunlight is insufficient, like in winter or less sunny spaces. Artificial lights, particularly LED lights that provide specific wavelengths, can promote faster, healthier growth. Full sun plants need 30-50W/sq ft, partial sun plants 20-30W/sq ft, and full shade plants 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant to mimic natural sunlight, and most plants need 8-12 hours of light per day.

What happens if Trident maple experiences temperatures below -35°C?

If Trident maple is exposed to temperatures below -35°C, there may not be noticeable changes during the winter. However, as spring arrives, the branches can become brittle and dry, and the plant might not produce new shoots. To address this, it's advised to prune away any dead branches that have failed to generate new leaves in the spring. Even though Trident maple is very cold-tolerant, winter temperatures should preferably remain above this threshold.

How frequently should I water my Trident maple tree?

The Trident maple prefers deep and infrequent watering, especially when planted in pots. To ensure proper hydration, soak them in a gallon of water each time. Since the water storage of flower pots is limited and the soil dries out faster, watering is required every 3 to 5 days in cold regions. It's best to water the plant early in the morning when the soil is dry, both outdoors and indoors. You can also check the soil to determine if watering is needed - when the top 2-3 inches of soil is dry, it's time for a thorough watering. During hot days, checking the moisture daily is necessary, as the heat can quickly dry out the pot's soil. If you have a garden, soil irrigation is also necessary. In hot climates, watering once a week should suffice. Only water when about 2 to 3 inches of soil become too dry, indoors or outdoors. It's important to consider the rainfall on the plant and avoid adding extra water to prevent root rot. In periods of ample rainfall, additional watering may not be needed. When the Trident maple is outdoors, adding mulch about 3 to 4 inches deep can help conserve water. Sandy soil generally requires more frequent watering due to faster drainage, while clay soil should be watered less frequently to avoid root rot (2-3 days to dry the plant is sufficient). To keep track of watering schedules and prevent dehydration, marking the date on a calendar can be helpful. If you notice the leaves drooping, it might be an indication that you're a day late with watering.

When should I not add fertilizer to my Trident maple?

There are specific times in the year when it is not recommended to fertilize your Trident maple. Firstly, during the early and mid-winter months, when the tree is dormant and does not require feeding. Additionally, it is not advisable to fertilize the tree during late spring and summer. During this period, the weather tends to be hotter and drier, which can adversely affect the tree's response to fertilizer. To prevent any problems, it is best to follow a fertilization schedule that involves feeding only in early spring and early fall.

What symptoms indicate Trident Maple is receiving improper sunlight?

Symptoms of light deficiency in Trident Maple include small or lighter-colored new leaves, leggy or sparse growth, faster leaf drop, and halted growth, indicating it's entered survival mode. Too much sunlight can lead to chlorosis (leaves turning yellow), sunscald (pale, bleached areas on leaves or stems), leaf curling, wilting, and leaf scorching (brown, dry edges on leaves). These symptoms suggest either too much or too little exposure to sunlight, affecting the plant's overall health.

How does high temperature affect Trident maple?

Trident maple struggles with high temperatures, particularly when they exceed 32°C. Under such conditions, the plant may experience significant leaf drop and, in severe cases, could wither and die. To mitigate damage from high temperatures, you should trim away sunburned and dried-up parts of the plant. Also, moving the plant to a shaded location during the midday and afternoon sun or using a shade cloth can help. Keeping the soil moist by watering in the morning and evening is crucial during hot periods.

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