Fabaceae
Japanese Pagoda Tree: Full Sun Plant
Sophora japonica
The Japanese Pagoda Tree requires as much sun as possible—ideally full sun, though it can tolerate light partial shade. Water moderately only when the top layer of the substrate has dried out, as the root system is sensitive to waterlogging. Grow in well-draining, humus-rich soil. During the growing season (spring–fall), fertilize regularly with a balanced fertilizer; cease fertilization during winter. As a bonsai, it should be repotted every 2–3 years in spring. Pruning should be done carefully, as the wood is brittle and prone to rot after large cuts.
Every 6 days
Direct sun
15° - 27°C
% - %
Categories
What is Japanese Pagoda Tree?
Japanese Pagoda Tree (Sophora japonica) is a medium-care plant from the Fabaceae family. The Japanese Pagoda Tree (Sophora japonica, syn. Styphnolobium japonicum) is a deciduous tree in the Fabaceae family, native to China and Korea, which has long been cultivated around temples and imperial gardens in Japan. It grows to a height of 15–25 m, featuring a broad, spreading crown and pinnat...
Japanese Pagoda Tree grows up to 22.9m, spread of 2286cm, watering every 6 days, 15°C – 27°C. It is suitable for indoor environments and not safe for pets.
Without precautions, ingestion can cause irritation in pets. Keep out of reach of cats and dogs. Without adequate drainage, root rot can develop within 12 days.
How to Care for Japanese Pagoda Tree?
TLDR: Japanese Pagoda Tree needs Direct sun, watering every 6 days, and temperatures between 15-27°C with 40-70% humidity.
How Often Should You Water Japanese Pagoda Tree?
Water when the top centimeter of the substrate is dry to the touch; never allow the roots to sit in standing water.
How Much Light Does Japanese Pagoda Tree Need?
Place in the sunniest spot available—a southeast/southwest window or an outdoor location in direct sunlight; it can also tolerate partial shade.
What Is the Best Soil for Japanese Pagoda Tree?
Use a well-draining substrate (e.g., a bonsai mix with a portion of perlite or akadama) to prevent root waterlogging.
What Pot Should You Use for Japanese Pagoda Tree?
Choose a deeper bonsai pot with a good drainage hole to allow for root system development and rapid runoff of excess water.
Care Schedule
Fertilize
Every 14 days
Repot
Every 900 days
What Is Japanese Pagoda Tree and Where Does It Come From?
The Japanese Pagoda Tree (Sophora japonica, syn. Styphnolobium japonicum) is a deciduous tree in the Fabaceae family, native to China and Korea, which has long been cultivated around temples and imperial gardens in Japan. It grows to a height of 15–25 m, featuring a broad, spreading crown and pinnate leaves composed of 7 to 17 leaflets. In summer (July–August), it blooms with creamy-white, lightly fragrant flowers in long panicles that are highly attractive to bees. Due to its resistance to drought, urban pollution, and frost (zones 4a–8b), it is frequently planted as a street and park tree. Because of its slow, resilient growth, thick bark, and ability to form aged, sculptural trunks, it is a popular species for bonsai.
How to Propagate Japanese Pagoda Tree?
How Big Does Japanese Pagoda Tree Grow?
TLDR: Japanese Pagoda Tree can reach up to 22.9m tall with Medium growth rate.
Max height
22.9m
Spread
22.9m
Growth rate
Medium
Foliage
Deciduous
Warning: Toxic Plant
This plant can be toxic if ingested. Keep out of reach of:
Plant Uses
Ornamental
Great for decoration
Medicinal
Medicinal properties
Medicinal Uses
- Dried flower buds (known as Huaihua) are used in Traditional Chinese Medicine as a source of rutin to strengthen blood vessels.
Culinary Uses
- The plant is not used in common cooking—the seeds and pods contain toxic alkaloids and are not edible.
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Japanese Pagoda Tree?
TLDR: Japanese Pagoda Tree is susceptible to 10 known diseases. Monitor regularly for early detection.
Rust
Rust is a common fungal disease caused by fungi in the order Pucciniales that affects a wide variety of plants. The disease gets its name from the characteristic orange, yellow, or reddish-brown pustules that appear on leaves, resembling metal rust. This obligate fungal parasite requires living plants to survive and can cause significant economic losses in agricultural crops.
Powdery Mildew
Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.
Root Rot
Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.
Verticillium Wilt
Verticillium wilt is a soil-borne fungal disease caused primarily by the fungi Verticillium dahliae and V. albo-atrum. These pathogens infect plant roots and grow within the vascular tissues, blocking water and nutrient transport, resulting in wilting and eventual plant death. The disease affects over 350 plant species including vegetables, fruits, ornamental flowers, and trees. The fungi can survive in soil for more than 10 years as resistant structures called microsclerotia.
Meaning & Symbolism
In Japan, the tree is called 'enju' and is associated with luck, protection, and wisdom; in China, it was traditionally planted near the graves of scholars as a symbol of education and longevity.
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