Siam benzoin (Styrax tonkinensis)
Also known as: Benzoin Tree, Siam Benzoin, Tonkin Benzoin
The genus Styrax, commonly known as snowbell, originates from Southeastern and Eastern Asia. First described in 1753, it includes over a hundred species of small to medium-sized trees. These trees are notable for their fragrant resin and their distinctive bell-shaped white flowers, reminiscent of snow.
In This Article
Attributes of Siam benzoin
Lifespan
Perennial
Plant Height
15 - 25 meters
Spread
10 - 15 meters
Leaf Color
Green
Flower Size
1 - 2 centimeters
Flower Color
White
Images of Siam benzoin
Quickly Identify Siam benzoin
1
Look for a medium-sized deciduous tree with a broadly ovate crown. The leaves are simple, alternate, and vary from ovate to lanceolate. The flowers are small, fragrant, white, and arranged in clusters. The fruit is a dry drupe.
Scientific Classification of Siam benzoin
Phylum
Vascular plants
Class
Dicotyledons
Order
Ericales
Family
Storax
Genus
storaxes
Species
Siam benzoin
Planting and Growing of Siam benzoin
Care Difficulty
Moderate
Watering Schedule
Every 3 days
Sunlight Requirements
Partial sun
Sunshine Duration
4-6 hours
Ideal Temperature
68-77℉
Soil Type
Potting Mix, Peat Mix
Soil pH
6.5-7.5
Fertilizer Type
Balanced
Pruning Season
Spring, Summer
Pruning Area
Branches, Leaves
Pruning Frequency
2 times a year
Repotting Season
Spring
Pot Type
Plastic, Ceramic
How to Water Siam benzoin?
When watering Styrax tonkinensis, ensure that the soil is moist but not waterlogged. Aim for around 500 ml per watering, distributed evenly across the root zone. The soil should feel slightly moist to the touch on the surface, but not excessively wet or dry.
What are the symptoms of an underwatered Siam benzoin?
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What should I do if my Siam benzoin is not getting enough water?
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What are the symptoms of an overwatered Siam benzoin?
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How to save an overwatered Siam benzoin?
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What Are the Sunlight Requirements for Siam benzoin?
Partial sun offers the best balance for Styrax tonkinensis, promoting healthy flowering and growth due to a well-balanced energy input.
How to Achieve Ideal Lighting?
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How to Measure Correct Lighting?
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What Happens With Ideal Lighting?
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What Is the Ideal Temperature Range for Siam benzoin?
The ideal temperature range for Styrax tonkinensis is between 68°F and 77°F. This range allows the plant to photosynthesize efficiently and maintain strong growth. Maintaining consistent temperatures will minimize stress and help ensure healthy development.
What Soil is Best for Siam benzoin?
Styrax tonkinensis thrives in nutrient-rich soil, which provides essential nutrients that promote healthy growth and flowering. Well-fertilized soil ensures the plant has access to all micro and macronutrients needed for vibrant leaf color and robust structural development. The plant requires well-draining soil to prevent waterlogging, which can lead to root rot. A well-structured loam or sandy loam soil ensures proper aeration and drainage, vital for maintaining healthy root systems and preventing fungal infections. Maintaining consistent moisture levels in the soil is crucial for this plant. Soil that neither dries out completely nor retains excessive water allows for steady nutrient uptake and helps the plant remain stress-free, which is crucial for continuous growth and flowering.
How to Fertilize Siam benzoin?
Styrax tonkinensis requires a balanced approach to fertilization. Typically, a balanced NPK fertilizer with a ratio of 10-10-10 or 20-20-20 is suitable. For each application, using approximately 100g per plant will ensure the necessary nutrients are supplied without overwhelming the root system.
How to Prune Siam benzoin?
Begin by assessing the entire Styrax tonkinensis to identify branches in need of removal. Make clean cuts close to the main stem without damaging the branch collar. Concentrate on removing any pests' havens like dense clusters of leaves. After pruning, take care of the plant by watering it sufficiently and applying a balanced fertilizer to promote recovery and growth. Monitor the plant for any signs of stress, such as wilting leaves or branch dieback.
More About Pruning Techniques→
How to Propagate Siam benzoin plant?
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Fill the seed trays with a well-draining potting mix suitable for seeds. Moisten the mix lightly without making it waterlogged to create an ideal seed starting environment.
2
Sow the Styrax tonkinensis seeds evenly on the surface of the prepared soil. Cover them lightly with a thin layer of soil, about twice their depth.
3
Select healthy, semi-hardwood sections of the plant with several leaves. Use pruning shears to cut 10-15 cm sections, removing lower leaves and keeping a few leaves at the top.
How to Repot Siam benzoin plant?
1
Watch for signs like roots emerging from drainage holes or when plant growth becomes stunted. These indicate the need for a larger pot. Ideally, repot in spring or summer when active growth ensures minimal stress.
2
Select a pot that is 2-3 inches larger in diameter than the current one, made of breathable material like terracotta. This provides ample space for root expansion and ensures proper air circulation, preventing root rot.
3
Opt for a well-draining and slightly acidic mix, perhaps incorporating perlite and peat moss. This promotes optimal root health by providing the necessary nutrients while preventing waterlogging.
